.auth-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#060c16b8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:10000;display:flex;align-items:center;justify-content:center;padding:1.25rem}.auth-modal{--auth-navy: #0c1726;--auth-navy-2: #132338;--auth-ink: #122033;--auth-muted: #5b6b80;--auth-line: #d7deea;--auth-paper: #f7f4ee;--auth-gold: #b8944a;--auth-blue: #1d4f86;width:min(920px,100%);max-height:min(92vh,720px);display:grid;grid-template-columns:1fr 1.08fr;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 30px 80px #00000073;position:relative;text-align:left;color:var(--auth-ink)}.auth-aside{background:linear-gradient(180deg,rgba(184,148,74,.08),transparent 28%),linear-gradient(165deg,var(--auth-navy-2) 0%,var(--auth-navy) 100%);color:#e8eef6;padding:2.25rem 2rem;display:flex;flex-direction:column;position:relative}.auth-aside:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.45),transparent 75%);mask-image:linear-gradient(180deg,rgba(0,0,0,.45),transparent 75%);pointer-events:none}.auth-aside-brand{display:flex;align-items:center;gap:.75rem;position:relative;z-index:1}.auth-aside-logo{width:40px;height:40px;object-fit:contain;border-radius:10px}.auth-aside-name{font-family:Outfit,sans-serif;font-weight:700;font-size:1.05rem;letter-spacing:-.02em}.auth-aside-kicker{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:#9aafc4;margin-top:.1rem}.auth-aside-title{position:relative;z-index:1;font-family:Outfit,sans-serif;font-size:1.55rem;font-weight:650;line-height:1.25;letter-spacing:-.03em;margin:2rem 0 .75rem;color:#f4f7fb}.auth-aside-copy{position:relative;z-index:1;color:#b7c5d6;font-size:.92rem;line-height:1.6;margin:0 0 1.5rem}.auth-aside-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.7rem;position:relative;z-index:1}.auth-aside-list li{display:flex;align-items:center;gap:.65rem;font-size:.88rem;color:#d5deea}.auth-aside-list svg{color:var(--auth-gold);flex-shrink:0}.auth-aside-note{margin-top:auto;padding-top:1.5rem;font-size:.78rem;color:#8ea0b5;border-top:1px solid rgba(255,255,255,.08);position:relative;z-index:1;line-height:1.5}.auth-panel{padding:2rem 2.15rem 1.6rem;background:#fff;overflow-y:auto;position:relative}.auth-close{position:absolute;top:.85rem;right:.85rem;background:#f3f5f8;border:1px solid var(--auth-line);color:#5b6b80;cursor:pointer;padding:.4rem;border-radius:8px;display:flex;transition:background .15s,color .15s}.auth-close:hover{background:#e8edf3;color:var(--auth-ink)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#eef2f7;border-radius:10px;padding:4px;margin:0 1.75rem 1.25rem 0;width:calc(100% - 1.75rem)}.auth-tab{border:none;background:transparent;color:#607086;font-weight:600;font-size:.9rem;padding:.55rem .75rem;border-radius:8px;cursor:pointer}.auth-tab.active{background:#fff;color:var(--auth-ink);box-shadow:0 1px 2px #0f172a14}.auth-modal h2{font-family:Outfit,sans-serif;font-size:1.45rem;font-weight:650;letter-spacing:-.03em;margin:0 0 .35rem;color:var(--auth-ink)}.auth-subtitle{color:var(--auth-muted);margin:0 0 1.15rem;font-size:.9rem;line-height:1.5}.auth-error{background:#fef2f2;color:#b42318;padding:.75rem .85rem;border-radius:8px;margin-bottom:1rem;font-size:.85rem;border:1px solid #f5c2c0;line-height:1.45}.auth-error-action{margin-top:.7rem;display:block;width:100%;padding:.5rem;background:#b42318;color:#fff;border:none;border-radius:6px;cursor:pointer;font-weight:600;font-size:.82rem}.auth-success{background:#ecfdf3;color:#067647;padding:.75rem .85rem;border-radius:8px;margin-bottom:1rem;font-size:.85rem;border:1px solid #abefc6;line-height:1.45}.auth-resend{display:block;width:100%;margin-top:.7rem;padding:.5rem .65rem;border:1px solid #067647;background:#fff;color:#067647;border-radius:6px;font-weight:650;font-size:.82rem;cursor:pointer}.auth-resend:disabled{opacity:.6;cursor:not-allowed}.auth-form{display:flex;flex-direction:column;gap:.85rem}.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:.85rem}.input-group{display:flex;flex-direction:column;gap:.35rem}.input-group label{font-size:.75rem;font-weight:650;letter-spacing:.02em;color:#3d4d63}.input-wrap{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:.85rem;color:#7b8ba0;pointer-events:none}.auth-form input:not([type=checkbox]){width:100%;padding:.72rem 2.4rem .72rem 2.45rem;background:#fbfcfe;border:1px solid var(--auth-line);border-radius:8px;color:var(--auth-ink);font-size:.95rem;transition:border-color .15s,box-shadow .15s}.auth-form input:not([type=checkbox])::placeholder{color:#9aa8b8}.auth-form input:not([type=checkbox]):focus{outline:none;border-color:var(--auth-blue);box-shadow:0 0 0 3px #1d4f8626;background:#fff}.input-eye{position:absolute;right:.45rem;background:none;border:none;color:#7b8ba0;cursor:pointer;padding:.35rem;display:flex;border-radius:6px}.input-eye:hover{color:var(--auth-ink);background:#eef2f7}.auth-submit{padding:.82rem 1rem;background:var(--auth-blue);color:#fff;border:none;border-radius:8px;font-size:.98rem;font-weight:650;cursor:pointer;transition:background .15s,transform .15s;margin-top:.25rem}.auth-submit:hover:not(:disabled){background:#163e6b}.auth-submit:disabled{opacity:.65;cursor:not-allowed}.auth-separator{display:flex;align-items:center;color:#8a98aa;margin:1.05rem 0 .85rem;font-size:.72rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase}.auth-separator:before,.auth-separator:after{content:"";flex:1;border-bottom:1px solid var(--auth-line)}.auth-separator span{padding:0 10px}.social-auth-container{display:flex;flex-direction:column;gap:.75rem}.social-auth-btn{display:flex;align-items:center;justify-content:center;gap:.7rem;padding:.72rem;background:#fff;border:1px solid var(--auth-line);border-radius:8px;color:var(--auth-ink);font-size:.92rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.social-auth-btn:hover:not(:disabled){background:#f7f9fc;border-color:#b7c3d4}.social-auth-btn:disabled{opacity:.65;cursor:not-allowed}.auth-legal{margin:.9rem 0 0;font-size:.72rem;color:#8a98aa;line-height:1.45;text-align:center}.auth-promo-check{display:flex;align-items:center;gap:.5rem;font-size:.85rem;font-weight:600;color:#3d4d63;cursor:pointer;-webkit-user-select:none;user-select:none}.auth-promo-check input{width:1rem;height:1rem;margin:0;accent-color:var(--auth-blue);flex-shrink:0}.auth-promo-field input{text-transform:uppercase}.auth-promo-field input::placeholder{text-transform:none;color:#9aa8b8;opacity:1}@media(max-width:760px){.auth-modal{grid-template-columns:1fr;max-height:92vh}.auth-aside{display:none}.auth-panel{padding:1.5rem 1.25rem 1.25rem}.auth-tabs{width:calc(100% - 2.2rem)}.auth-grid{grid-template-columns:1fr}}.landing-container{--bg-main: #08111c;--lp-navy: #0b1626;--lp-navy-2: #122033;--lp-blue: #1d4f86;--lp-gold: #b8954a;--lp-paper: #f3eee4;--lp-ink: #1a2433;--text-main: #eef3f8;--text-muted: #9aabbf;--primary: #3d7ec4;min-height:100vh;background:var(--bg-main);color:var(--text-main);font-family:Inter,sans-serif;display:flex;flex-direction:column;overflow-x:hidden}.lp-wrap{width:min(1120px,calc(100% - 2.4rem));margin:0 auto}#ozellikler,#ekosistem,#kitapcik,#takvim,#pricing{scroll-margin-top:76px}html{scroll-behavior:smooth}.landing-header{display:flex;justify-content:space-between;align-items:center;gap:1.25rem;padding:.7rem 1.6rem;background:#08111cdb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.07);position:sticky;top:0;z-index:20}.landing-brand{display:flex;align-items:center;gap:.7rem;flex-shrink:0}.brand-mark{width:42px;height:42px;display:block;border-radius:11px;box-shadow:0 0 0 1px #c4a35a73,0 8px 18px #00000047;flex-shrink:0}.brand-copy{display:flex;flex-direction:column;line-height:1.15}.landing-brand .brand-title{font-family:Outfit,sans-serif;font-weight:700;font-size:1.05rem;color:#f4f7fb;letter-spacing:-.03em}.landing-brand .brand-subtitle{font-size:.66rem;letter-spacing:.07em;text-transform:uppercase;color:#8ea0b5}.header-clocks{display:flex;gap:.5rem;flex:1;justify-content:center}.exam-chip{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:8px;padding:.32rem .65rem .38rem;min-width:142px}.exam-chip-label{display:block;font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#8ea0b5;margin-bottom:.12rem}.exam-chip-units{display:flex;align-items:flex-end;gap:.16rem;color:#e8eef6;font-variant-numeric:tabular-nums}.exam-chip-units span{display:flex;flex-direction:column;align-items:center;line-height:1}.exam-chip-units b{font-family:Outfit,sans-serif;font-size:.95rem;font-weight:650}.exam-chip-units small{font-size:.5rem;color:#7e90a6;margin-top:2px;letter-spacing:.04em;text-transform:uppercase}.exam-chip-units i{font-style:normal;opacity:.35;padding-bottom:.68rem;font-weight:600}.exam-chip.ended{opacity:.5}.exam-chip-ended{font-size:.78rem;color:#9aa8b8}.header-actions{display:flex;align-items:center;gap:.4rem;flex-shrink:0}.btn-header-ghost,.btn-header-solid{border-radius:8px;font-weight:600;font-size:.86rem;cursor:pointer;padding:.48rem .85rem;display:inline-flex;align-items:center;gap:.35rem;transition:background .15s,border-color .15s;white-space:nowrap}.btn-text-full{display:inline}.btn-text-mobile{display:none}.btn-header-ghost{background:transparent;border:1px solid rgba(255,255,255,.12);color:#d7e0ea}.btn-header-ghost:hover{background:#ffffff0f}.btn-header-solid{background:var(--lp-blue);border:1px solid transparent;color:#fff;min-height:44px}.btn-header-solid:hover{background:#163e6b}.landing-top-bg{background:url(/assets/hero_bg.png) no-repeat center center;background-size:cover;position:relative}.landing-top-bg:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,#08111ceb,#08111cb8 55%,#08111c8c);z-index:0}.landing-top-bg>*{position:relative;z-index:1}.hero-section{width:min(1120px,calc(100% - 2.4rem));margin:0 auto;padding:3.6rem 0 4.2rem;display:grid;grid-template-columns:1.05fr .95fr;gap:2.6rem;align-items:center}.hero-content{display:flex;flex-direction:column;gap:1.05rem}.hero-badge{align-self:flex-start;margin:0;background:#b8954a1f;color:#e4cf98;border:1px solid rgba(184,149,74,.3);padding:.34rem .7rem;border-radius:999px;font-size:.7rem;font-weight:650;letter-spacing:.07em;text-transform:uppercase}.hero-title{font-family:Outfit,sans-serif;font-size:clamp(2.15rem,4.4vw,3.4rem);font-weight:650;line-height:1.12;letter-spacing:-.035em;margin:0;color:#f4f7fb}.hero-highlight{display:block;color:#d7c089}.hero-description{font-size:1.04rem;color:#c5d0dc;line-height:1.65;margin:0;max-width:36rem}.hero-actions{display:flex;flex-wrap:wrap;gap:.65rem;margin-top:.25rem}.hero-primary-btn,.hero-secondary-btn{border-radius:8px;font-size:.95rem;font-weight:650;padding:.78rem 1.2rem;cursor:pointer}.hero-primary-btn{background:#f4f7fb;color:#102033;border:none}.hero-primary-btn:hover{background:#fff}.hero-secondary-btn{background:transparent;color:#e8eef6;border:1px solid rgba(255,255,255,.2)}.hero-secondary-btn:hover{border-color:#fff6}.hero-visual{min-width:0}.hero-slideshow{display:flex;flex-direction:column;gap:.75rem;min-width:0}.hero-slideshow-stage{position:relative;width:100%;height:420px;overflow:hidden;border-radius:14px}.hero-slide-pane{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .45s ease,visibility .45s ease}.hero-slide-pane.is-on{opacity:1;visibility:visible;pointer-events:auto}.hero-slide-pane .ls-frame,.hero-slide-pane .ls-app{height:100%;max-height:none;overflow:hidden}.hero-ad{min-height:7.2rem;padding:.85rem 1rem .95rem;background:#08111cc7;border:1px solid rgba(184,149,74,.32);border-radius:10px;box-shadow:0 12px 28px #00000047}.hero-ad-kicker{display:inline-block;font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#d7c089;margin-bottom:.28rem}.hero-ad-title{font-family:Outfit,sans-serif;font-size:1.18rem;font-weight:650;letter-spacing:-.03em;margin:0 0 .35rem;color:#f4f7fb}.hero-ad-line{margin:0;font-size:.9rem;line-height:1.55;color:#c5d0dc}.hero-slideshow-nav{display:flex;align-items:center;justify-content:center;gap:.65rem}.hero-slide-arrow{width:32px;height:32px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:#ffffff0d;color:#e8eef6;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.hero-slide-arrow:hover{border-color:#ffffff59;background:#ffffff1a}.hero-slide-dots{display:flex;gap:.35rem;align-items:center}.hero-slide-dots button{width:7px;height:7px;padding:0;border:none;border-radius:99px;background:#ffffff47;cursor:pointer}.hero-slide-dots button.on{width:22px;background:#d7c089}.hero-proof{list-style:none;padding:0;margin:.15rem 0 0;display:flex;flex-wrap:wrap;gap:.45rem}.hero-proof li{font-size:.74rem;font-weight:600;letter-spacing:.02em;color:#d7c089;border:1px solid rgba(184,149,74,.28);background:#b8954a14;border-radius:999px;padding:.28rem .65rem}.exam-screen{background:#f7f4ee;color:var(--lp-ink);border-radius:10px;overflow:hidden;box-shadow:0 22px 50px #00000061;border:1px solid rgba(255,255,255,.12)}.exam-screen-bar{background:#123154;color:#e8eef6;display:flex;justify-content:space-between;align-items:center;padding:.62rem .95rem;font-size:.78rem;font-weight:600;letter-spacing:.01em}.exam-screen-meta{display:inline-flex;align-items:center;gap:.45rem;color:#d7c089;font-variant-numeric:tabular-nums}.exam-screen-meta em{font-style:normal;color:#fff;background:#ffffff1a;padding:.12rem .4rem;border-radius:4px}.exam-screen-body{padding:1.15rem 1.2rem 1rem}.exam-instruction{font-size:.78rem;color:#5c6b7d;margin:0 0 .75rem}.exam-stem{font-family:"Source Serif 4",Georgia,serif;font-size:1.02rem;line-height:1.55;margin:0 0 1rem}.exam-options{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.4rem}.exam-options li{border:1px solid #d5dce6;border-radius:6px;padding:.52rem .75rem;font-size:.9rem;background:#fff}.exam-options li.is-selected{border-color:#1d4f86;background:#eef4fb;font-weight:600;box-shadow:inset 3px 0 #1d4f86}.exam-screen-foot{display:flex;justify-content:space-between;padding:.55rem 1.1rem;border-top:1px solid #e3e0d8;font-size:.72rem;color:#6a7888;text-transform:uppercase;letter-spacing:.05em}.trust-bar{background:#0d1828;border-top:1px solid rgba(184,149,74,.28);border-bottom:1px solid rgba(255,255,255,.05)}.trust-inner{width:min(1120px,calc(100% - 2.4rem));margin:0 auto;display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;padding:1.15rem 0}.trust-inner div{display:flex;flex-direction:column;gap:.15rem}.trust-inner b{font-family:Outfit,sans-serif;font-size:1.35rem;font-weight:650;color:#f0f4f8}.trust-inner span{font-size:.75rem;color:#8ea0b5}.ecosystem-section{background:#0a1422;padding:3.6rem 0 3.8rem;border-bottom:1px solid rgba(255,255,255,.05)}.ecosystem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.9rem;margin-top:1.5rem}.ecosystem-grid article{border:1px solid rgba(184,149,74,.22);background:linear-gradient(180deg,#b8954a12,#ffffff05);padding:1.25rem 1.15rem 1.3rem;min-height:100%}.ecosystem-grid b{display:block;font-family:Outfit,sans-serif;font-size:1.85rem;font-weight:700;letter-spacing:-.04em;color:#d7c089;line-height:1;margin-bottom:.7rem}.ecosystem-grid h3{font-family:Outfit,sans-serif;font-size:1.02rem;margin:0 0 .45rem;color:#f0f4f8;line-height:1.3}.ecosystem-grid p{margin:0;color:#9aabbf;font-size:.88rem;line-height:1.55}.paper-section{background:var(--lp-paper);color:var(--lp-ink);padding:4.2rem 0 4.5rem}.paper-grid{display:grid;grid-template-columns:1.35fr .75fr;gap:2.4rem;align-items:start}.section-kicker{margin:0 0 .45rem;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#8a7040}.section-kicker.light{color:#c4a35a}.paper-section h2,.curriculum-section h2,.calendar-section h2,.pricing-section h2{font-family:Outfit,sans-serif;font-size:clamp(1.55rem,2.6vw,2.05rem);font-weight:650;letter-spacing:-.03em;margin:0 0 .65rem;line-height:1.2}.on-dark{color:#f0f4f8}.section-lead{margin:0 0 1.35rem;color:#4d5b6c;line-height:1.6;max-width:40rem}.section-lead.on-dark{color:#9aabbf}.booklet-table{width:100%;border-collapse:collapse;font-size:.86rem;background:#fff;border:1px solid #ddd4c4}.booklet-table th,.booklet-table td{padding:.55rem .7rem;border-bottom:1px solid #ebe4d6;text-align:left}.booklet-table th{font-size:.68rem;letter-spacing:.07em;text-transform:uppercase;color:#6d5a38;background:#ebe4d4;font-weight:700}.booklet-table td:nth-child(1),.booklet-table td:nth-child(2){font-variant-numeric:tabular-nums;font-weight:650;white-space:nowrap}.booklet-table td:nth-child(4){color:#5c6b7d}.optical-card{background:#fff;border:1px solid #ddd4c4;padding:1.1rem 1.05rem 1rem}.optical-card-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid #e3dccf;padding-bottom:.55rem;margin-bottom:.7rem;font-size:.82rem}.optical-card-head span{color:#7a6540;font-weight:650}.optical-legend{display:flex;gap:.75rem;font-size:.7rem;color:#667384;margin-bottom:.75rem}.optical-legend span{display:inline-flex;align-items:center;gap:.3rem}.optical-legend i{width:12px;height:12px;border-radius:50%;border:1px solid #b7c0cc;display:inline-block}.optical-legend .lg-fill{background:#1a2433;border-color:#1a2433}.optical-legend .lg-now{background:#1d4f86;border-color:#1d4f86}.lp-opt-row{display:flex;align-items:center;gap:.7rem;padding:.28rem .2rem}.lp-opt-row.is-active{background:#e8eef6;border-radius:4px}.lp-opt-num{width:22px;text-align:right;font-size:.78rem;font-weight:700;color:#5c6b7d;font-variant-numeric:tabular-nums}.lp-opt-bubbles{display:flex;gap:.38rem}.lp-opt-bubble{width:24px;height:24px;border-radius:50%;border:1.5px solid #c5ced8;display:flex;align-items:center;justify-content:center;font-size:.62rem;font-weight:700;color:#8a96a4;background:#fff}.lp-opt-bubble.is-filled{background:#1a2433;border-color:#1a2433;color:transparent}.lp-opt-row.is-active .lp-opt-bubble.is-filled{background:#1d4f86;border-color:#1d4f86}.optical-note{margin:.85rem 0 0;font-size:.75rem;color:#667384;line-height:1.5}.showcase-section{background:var(--lp-navy);padding:4.2rem 0 4.6rem}.slide-tabs{display:flex;flex-wrap:wrap;gap:.45rem;margin:1.4rem 0 1.5rem}.slide-tabs button{background:#ffffff0a;border:1px solid rgba(255,255,255,.1);color:#c5d0dc;border-radius:999px;padding:.42rem .85rem;font-size:.78rem;font-weight:650;cursor:pointer}.slide-tabs button.on{background:#f4f7fb;color:#102033;border-color:#f4f7fb}.showcase-stage{display:grid;grid-template-columns:.85fr 1.15fr;gap:2rem;align-items:center}.showcase-copy h3{font-family:Outfit,sans-serif;font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:650;letter-spacing:-.03em;margin:0 0 .7rem;color:#f0f4f8}.showcase-copy p{margin:0 0 1rem;color:#9aabbf;line-height:1.65}.showcase-copy ul{margin:0 0 1.2rem;padding:0;list-style:none;display:flex;flex-direction:column;gap:.45rem}.showcase-copy li{color:#d5deea;font-size:.92rem;padding-left:.95rem;position:relative}.showcase-copy li:before{content:"";position:absolute;left:0;top:.5rem;width:5px;height:5px;border-radius:50%;background:#c4a35a}.ls-frame{min-width:0}.ls-app{--ls-bg: #f1f5f9;--ls-card: #ffffff;--ls-ink: #0f172a;--ls-muted: #64748b;--ls-line: #e2e8f0;--ls-pri: #3d7ec4;--ls-pri-s: rgba(61, 126, 196, .12);--ls-ok: #059669;--ls-bad: #dc2626;--ls-gold: #c4a35a;background:var(--ls-bg);color:var(--ls-ink);border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:0 24px 50px #00000061;font-family:Inter,sans-serif}.ls-window{display:flex;align-items:center;gap:.35rem;padding:.45rem .7rem;background:#e8edf3;border-bottom:1px solid var(--ls-line)}.ls-window span{width:8px;height:8px;border-radius:50%;background:#c5ced8}.ls-window em{margin-left:.55rem;font-style:normal;font-size:.68rem;color:#7b8794}.ls-bar{display:flex;align-items:center;gap:.55rem;padding:.45rem .7rem;background:var(--ls-card);border-bottom:1px solid var(--ls-line)}.ls-brand{display:flex;align-items:center;gap:.4rem;flex-shrink:0}.ls-brand strong{font-size:.72rem;font-family:Outfit,sans-serif}.ls-mark{width:20px;height:20px;display:block;border-radius:5px}.ls-modes{display:flex;gap:.25rem;flex:1;min-width:0}.ls-modes span{display:inline-flex;align-items:center;gap:.2rem;font-size:.62rem;font-weight:700;color:var(--ls-muted);padding:.18rem .4rem;border-radius:6px}.ls-modes span.on{background:var(--ls-pri);color:#fff}.ls-meta{display:flex;align-items:center;gap:.35rem;font-size:.65rem}.ls-timer{display:inline-flex;align-items:center;gap:.2rem;font-family:ui-monospace,monospace;color:#0284c7;background:var(--ls-bg);border:1px solid var(--ls-line);border-radius:6px;padding:.12rem .35rem}.ls-meta i{font-style:normal;font-weight:800;color:var(--ls-pri)}.ls-ghost{display:inline-flex;align-items:center;gap:.2rem;border:1px solid var(--ls-line);border-radius:6px;padding:.12rem .35rem;color:var(--ls-muted)}.ls-sub{display:flex;align-items:center;gap:.35rem;padding:.28rem .75rem;font-size:.68rem;font-weight:650;color:#334155;background:#eef2f7;border-bottom:1px solid var(--ls-line)}.ls-exam{display:grid;grid-template-columns:1.15fr .85fr;gap:.65rem;padding:.7rem}.ls-qcol{background:var(--ls-card);border:1px solid var(--ls-line);border-radius:10px;padding:.75rem .8rem .8rem}.ls-qcol.pad{margin:.7rem}.ls-qhead{display:flex;align-items:center;gap:.35rem;flex-wrap:wrap;margin-bottom:.55rem}.ls-qhead em{font-style:normal;width:22px;height:22px;border-radius:50%;background:var(--ls-pri);color:#fff;font-size:.68rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center}.ls-qhead b{font-size:.62rem;color:var(--ls-pri);background:var(--ls-pri-s);border-radius:999px;padding:.12rem .4rem}.ls-qhead small{color:var(--ls-muted);font-size:.62rem}.ls-stem{margin:0 0 .55rem;font-size:.78rem;font-weight:600;line-height:1.45}.ls-opt{display:flex;align-items:center;gap:.45rem;border:1.5px solid var(--ls-line);background:var(--ls-bg);border-radius:8px;padding:.32rem .5rem;margin-bottom:.32rem;font-size:.72rem}.ls-opt i{width:18px;height:18px;border-radius:50%;border:1.5px solid var(--ls-line);display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-weight:800;font-size:.62rem;color:var(--ls-muted);flex-shrink:0}.ls-opt.sel{border-color:var(--ls-pri);background:var(--ls-pri-s);font-weight:650}.ls-opt.sel i{background:var(--ls-pri);border-color:var(--ls-pri);color:#fff}.ls-opt.ok{border-color:var(--ls-ok);background:#0596691a;color:var(--ls-ok)}.ls-opt.ok i{background:var(--ls-ok);border-color:var(--ls-ok);color:#fff}.ls-opt.bad{border-color:var(--ls-bad);background:#dc262614;color:var(--ls-bad)}.ls-opt.bad i{background:var(--ls-bad);border-color:var(--ls-bad);color:#fff}.ls-x{margin-left:auto;font-weight:800}.ls-opti,.ls-optical-full{background:var(--ls-card);border:1px solid var(--ls-line);border-radius:10px;padding:.65rem}.ls-optical-full{margin:.7rem}.ls-opti-h{display:flex;align-items:center;gap:.35rem;font-size:.7rem;font-weight:700;margin-bottom:.5rem}.ls-opti-h b{margin-left:auto;color:var(--ls-pri);background:var(--ls-pri-s);border-radius:999px;padding:.1rem .4rem;font-size:.62rem}.ls-legend{display:flex;gap:.45rem;font-size:.58rem;color:var(--ls-muted);font-weight:600}.ls-legend i{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:.15rem}.ls-legend .a{background:var(--ls-pri)}.ls-legend .f{background:#d97706}.ls-legend .b{background:#fff;border:1px solid var(--ls-line)}.ls-cells{display:grid;grid-template-columns:repeat(5,1fr);gap:.28rem}.ls-cells.wide{grid-template-columns:repeat(10,1fr)}.ls-cell{aspect-ratio:1;border:1px solid var(--ls-line);background:var(--ls-bg);border-radius:4px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.48rem;font-weight:700;position:relative}.ls-cell.done{background:var(--ls-pri);color:#fff;border-color:var(--ls-pri)}.ls-cell.now{outline:2px solid #0284c7;outline-offset:1px}.ls-cell.flag:after{content:"★";position:absolute;top:0;right:2px;font-size:.45rem;color:#d97706}.ls-cell strong{font-size:.52rem}.ls-opti-foot{margin-top:.55rem;text-align:center;background:var(--ls-pri);color:#fff;border-radius:8px;padding:.45rem;font-size:.72rem;font-weight:700}.ls-sol{margin-top:.55rem;border:1px solid var(--ls-pri);border-radius:8px;padding:.55rem .6rem;background:#f8f7ff}.ls-sol-h{display:flex;align-items:center;gap:.3rem;color:var(--ls-pri);font-size:.68rem;font-weight:700;margin-bottom:.3rem}.ls-sol p{margin:0;font-size:.7rem;line-height:1.45;color:#334155}.ls-lesson{padding:.65rem .7rem .8rem}.ls-tabs{display:flex;gap:.35rem;margin-bottom:.65rem}.ls-tabs span{font-size:.66rem;font-weight:700;color:var(--ls-muted);padding:.28rem .5rem;border-radius:6px}.ls-tabs span.on{background:var(--ls-card);color:var(--ls-pri);box-shadow:0 0 0 1px var(--ls-line)}.ls-vocab{display:grid;grid-template-columns:.95fr 1.05fr;gap:.65rem}.ls-card{background:var(--ls-card);border:2px solid var(--ls-pri);border-radius:12px;padding:.85rem .8rem;text-align:center}.ls-card small{color:var(--ls-muted);font-size:.62rem}.ls-card h3{margin:.45rem 0 .1rem;font-family:Outfit,sans-serif;font-size:1.45rem;color:var(--ls-pri)}.ls-card em{color:var(--ls-muted);font-size:.75rem}.ls-mean{margin:.45rem 0 .3rem;font-weight:700;font-size:.95rem}.ls-syn{font-size:.68rem;color:var(--ls-muted);margin-bottom:.65rem}.ls-card button{border:none;background:var(--ls-pri);color:#fff;border-radius:8px;padding:.4rem .9rem;font-weight:700;font-size:.72rem}.ls-match{background:var(--ls-card);border:1px solid var(--ls-line);border-radius:12px;padding:.7rem}.ls-match b{display:block;font-size:.72rem;margin-bottom:.45rem;color:var(--ls-pri)}.ls-cols{display:grid;grid-template-columns:1fr 1fr;gap:.4rem}.ls-cols i{display:block;font-style:normal;font-weight:700;font-size:.7rem;border:1px solid var(--ls-line);border-radius:8px;padding:.38rem .45rem;margin-bottom:.32rem}.ls-cols i.hit{background:#0596691f;border-color:var(--ls-ok);color:var(--ls-ok)}.ls-read{display:grid;grid-template-columns:1.25fr .75fr;gap:.65rem}.ls-read p{margin:0 0 .55rem;font-size:.74rem;line-height:1.65}.ls-read-actions{display:flex;gap:.35rem;margin-bottom:.55rem}.ls-read-actions span{font-size:.64rem;font-weight:700;border:1px solid var(--ls-line);border-radius:7px;padding:.28rem .45rem;background:var(--ls-card);display:inline-flex;align-items:center;gap:.2rem}.ls-read-actions span.on{background:var(--ls-bad);color:#fff;border-color:var(--ls-bad)}.ls-read mark.v{background:#dc26261f;color:var(--ls-bad);font-weight:700;padding:0 2px;border-radius:3px}.ls-read mark.n{background:var(--ls-pri-s);color:var(--ls-pri);font-weight:700;padding:0 2px;border-radius:3px}.ls-read aside{background:var(--ls-card);border:1px solid var(--ls-line);border-radius:10px;padding:.7rem}.ls-read aside strong{display:block;font-size:.78rem;margin:.25rem 0 .35rem}.ls-read aside p{font-size:.68rem;color:var(--ls-muted)}.ls-read aside small{color:var(--ls-pri);font-weight:700;font-size:.62rem}.ls-score{padding:.85rem}.ls-score-hero{text-align:center;border:1px solid var(--ls-pri);background:linear-gradient(135deg,var(--ls-pri-s),rgba(6,182,212,.1));border-radius:12px;padding:.9rem .7rem}.ls-score-hero small{display:block;color:var(--ls-muted);font-weight:650;font-size:.7rem}.ls-score-hero strong{display:block;font-family:Outfit,sans-serif;font-size:2rem;color:var(--ls-pri);line-height:1.1;margin:.2rem 0}.ls-score-hero strong span{font-size:.95rem}.ls-score-hero em{font-style:normal;font-size:.68rem;color:var(--ls-muted)}.ls-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:.4rem;margin-top:.65rem}.ls-stats div{background:var(--ls-card);border:1px solid var(--ls-line);border-radius:8px;padding:.45rem .3rem;text-align:center}.ls-stats b{display:block;font-size:1rem}.ls-stats .ok{color:var(--ls-ok)}.ls-stats .bad{color:var(--ls-bad)}.ls-stats span{font-size:.58rem;color:var(--ls-muted)}.steps-section{background:#0d1828;padding:3.4rem 0 3.6rem;border-top:1px solid rgba(255,255,255,.05)}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.4rem}.steps-grid article{border:1px solid rgba(255,255,255,.08);background:#ffffff08;padding:1.2rem 1.15rem 1.25rem}.steps-grid em{font-style:normal;font-family:Outfit,sans-serif;color:#c4a35a;font-size:.85rem;font-weight:700;letter-spacing:.08em}.steps-grid h3{font-family:Outfit,sans-serif;font-size:1.08rem;margin:.4rem 0}.steps-grid p{margin:0;color:#9aabbf;font-size:.9rem;line-height:1.55}.faq-section{background:#08121e;padding:3.6rem 0 4rem;border-top:1px solid rgba(255,255,255,.05)}.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:2rem;align-items:start}.faq-item{border-bottom:1px solid rgba(255,255,255,.07)}.faq-item button{width:100%;text-align:left;background:none;border:none;color:#f0f4f8;font-weight:650;font-size:.95rem;padding:.95rem 0;cursor:pointer}.faq-item p{margin:0 0 .95rem;color:#9aabbf;font-size:.9rem;line-height:1.6}.calendar-section{background:#0a1422;padding:3.6rem 0 4rem;border-top:1px solid rgba(255,255,255,.05)}.cal-table-wrap{overflow-x:auto}.cal-table{width:100%;border-collapse:collapse;font-size:.92rem}.cal-table th,.cal-table td{text-align:left;padding:.78rem .7rem;border-bottom:1px solid rgba(255,255,255,.06)}.cal-table th{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:#8ea0b5}.cal-table tr.done td{color:#6d7c8d}.cal-table tr.next td{background:#b8954a14}.cal-table em{font-style:normal;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d7c089}.cal-table em.yds{color:#8ec8a8}.cal-table .muted{color:#6d7c8d;font-size:.8rem}.pricing-section{background:var(--lp-navy-2);padding:4rem 0 4.4rem}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-top:1.6rem}.pricing-card{background:#101c2e;border:1px solid rgba(255,255,255,.08);padding:1.5rem 1.3rem 1.35rem;display:flex;flex-direction:column;position:relative}.pricing-card.popular{border-color:#3d7ec4}.pricing-card.premium{border-color:#b8954a73}.popular-badge{position:absolute;top:-10px;left:1rem;background:#1d4f86;color:#fff;padding:.15rem .55rem;font-size:.65rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.pricing-tier{font-size:.92rem;font-weight:650;color:#9aabbf;margin-bottom:.35rem}.pricing-price{font-family:Outfit,sans-serif;font-size:2.3rem;font-weight:650;margin-bottom:1.1rem;display:flex;align-items:baseline;gap:.35rem}.pricing-price span{font-size:.88rem;font-weight:500;color:#8ea0b5}.pricing-features{list-style:none;padding:0;margin:0 0 1.4rem;display:flex;flex-direction:column;gap:.55rem;flex:1;font-size:.9rem;color:#d5deea}.pricing-features li{padding-left:.95rem;position:relative}.pricing-features li:before{content:"";position:absolute;left:0;top:.5rem;width:5px;height:5px;border-radius:50%;background:#c4a35a}.pricing-btn{width:100%;padding:.78rem;border-radius:8px;font-size:.92rem;font-weight:650;cursor:pointer;border:none;background:#1d4f86;color:#fff}.pricing-btn:hover{background:#163e6b}.pricing-btn.outline{background:transparent;border:1px solid rgba(255,255,255,.16);color:#e8eef6}.pricing-btn.outline:hover{background:#ffffff0d}.pricing-btn.premium-btn{background:transparent;border:1px solid rgba(184,149,74,.55);color:#e4cf98}.pricing-btn.premium-btn:hover{background:#b8954a1a}.landing-footer{border-top:1px solid rgba(255,255,255,.07);background:#070e17;padding:1.6rem 1.5rem 1.8rem}.footer-inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}.footer-brand{display:flex;align-items:center;gap:.65rem;flex-shrink:0}.footer-mark{width:34px;height:34px;display:block;border-radius:8px}.footer-links{display:flex;flex-wrap:wrap;gap:.85rem;align-items:center}.footer-links a,.footer-links button{background:none;border:none;color:#c5d0dc;font-size:.8rem;font-weight:600;cursor:pointer;padding:0;text-decoration:none}.footer-links a:hover,.footer-links button:hover{color:#fff}.header-actions a.btn-header-ghost{text-decoration:none}.footer-brand strong{display:block;font-size:.9rem}.footer-brand span{display:block;font-size:.72rem;color:var(--text-muted)}.landing-footer p{margin:0;font-size:.8rem;color:#8ea0b5;line-height:1.55}@media(max-width:1360px){.header-clocks{display:none}}@media(max-width:1024px){.hero-section{grid-template-columns:1fr;padding:2.4rem 0 3rem}.hero-slideshow-stage{height:340px}.paper-grid,.pricing-grid,.trust-inner,.ecosystem-grid,.showcase-stage,.steps-grid,.faq-grid,.ls-exam,.ls-vocab,.ls-read{grid-template-columns:1fr}.trust-inner{grid-template-columns:repeat(2,1fr);gap:.9rem 1rem}.ecosystem-grid{grid-template-columns:1fr 1fr}.ls-cells.wide{grid-template-columns:repeat(8,1fr)}}@media(max-width:768px){.landing-header{flex-wrap:nowrap;padding:.55rem .85rem;gap:.5rem}.landing-brand{min-width:0;gap:.55rem}.brand-copy{min-width:0}.landing-brand .brand-title{font-size:.98rem;font-weight:750;color:#fff}.landing-brand .brand-subtitle{display:none}.brand-mark{width:34px;height:34px;border-radius:9px}.header-actions{margin-left:auto;flex-shrink:0;gap:.4rem}.btn-header-ghost,.btn-header-solid{padding:.42rem .68rem;font-size:.82rem;font-weight:650;border-radius:8px;gap:.32rem;white-space:nowrap;min-height:44px}.btn-header-daily{background:#f59e0b1f;border:1px solid rgba(245,158,11,.35);color:#fbbf24}.btn-header-blog{background:#3b82f61f;border:1px solid rgba(59,130,246,.35);color:#93c5fd}.btn-header-login{background:var(--lp-blue);border:1px solid rgba(96,165,250,.5);color:#fff;font-weight:700;padding:.42rem .78rem;font-size:.82rem;border-radius:8px;gap:.32rem;box-shadow:0 4px 12px #1d4f8666}.btn-text-full{display:none!important}.btn-text-mobile{display:inline!important}.hero-actions{flex-direction:column}.hero-primary-btn,.hero-secondary-btn{width:100%;justify-content:center}.booklet-table td:nth-child(4){display:none}.booklet-table th:nth-child(4){display:none}.hide-narrow,.hide-sm{display:none!important}.hero-ad-title{font-size:1.02rem}.hero-ad-line{font-size:.84rem}.hero-ad{min-height:6.4rem}.hero-slideshow-stage{height:280px}}@media(max-width:480px){.landing-header{padding:.48rem .6rem;gap:.35rem}.landing-brand{gap:.45rem}.brand-mark{width:30px;height:30px;border-radius:8px}.landing-brand .brand-title{font-size:.9rem}.header-actions{gap:.3rem}.btn-header-ghost,.btn-header-login,.btn-header-solid{padding:.38rem .56rem;font-size:.78rem;border-radius:7px;gap:.25rem;min-height:44px}.btn-header-daily svg,.btn-header-blog svg,.btn-header-login svg,.btn-header-solid svg{width:14px!important;height:14px!important}}@media(max-width:360px){.landing-brand .brand-title{font-size:.82rem}.btn-header-ghost,.btn-header-login,.btn-header-solid{padding:.32rem .45rem;font-size:.74rem;gap:.2rem;min-height:44px}}@media(max-width:700px){.footer-inner{flex-direction:column;align-items:flex-start;gap:.8rem}.trust-inner{grid-template-columns:1fr 1fr}}.upgrade-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:9999;animation:fadeInOverlay .3s ease}.upgrade-modal{background:var(--bg-main);border:1px solid var(--border-color);border-radius:24px;width:90%;max-width:800px;padding:3rem;position:relative;box-shadow:0 25px 50px -12px #00000080;animation:slideUpModal .4s cubic-bezier(.16,1,.3,1);display:flex;flex-direction:column;gap:2.5rem}.upgrade-close-btn{position:absolute;top:1.5rem;right:1.5rem;background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:50%;transition:all .2s;display:flex;align-items:center;justify-content:center}.upgrade-close-btn:hover{background:#ffffff1a;color:var(--text-main)}.upgrade-header{text-align:center}.upgrade-header h2{font-size:2rem;margin:0 0 1rem;color:var(--text-main)}.upgrade-header p{color:var(--text-muted);font-size:1.1rem;margin:0}.upgrade-options{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.upgrade-card{border:1px solid var(--border-color);background:var(--bg-card);border-radius:16px;padding:2rem;display:flex;flex-direction:column}.upgrade-card.premium{border-color:#8b5cf6;background:linear-gradient(180deg,rgba(139,92,246,.1) 0%,var(--bg-card) 100%);box-shadow:0 0 30px #8b5cf61a}.upgrade-tier{font-size:1.2rem;font-weight:700;color:var(--text-muted);margin-bottom:.5rem}.upgrade-price{font-size:2.5rem;font-weight:800;color:var(--text-main);margin-bottom:1.5rem;display:flex;align-items:baseline;gap:.5rem}.upgrade-price span{font-size:1rem;font-weight:500;color:var(--text-muted)}.upgrade-features{list-style:none;padding:0;margin:0 0 2rem;display:flex;flex-direction:column;gap:1rem;flex:1}.upgrade-features li{display:flex;align-items:center;gap:.75rem;font-size:.95rem;color:var(--text-main)}.upgrade-btn{width:100%;padding:1rem;border:none;border-radius:12px;font-size:1rem;font-weight:700;color:#fff;cursor:pointer;transition:all .2s}.upgrade-btn.pro{background:#3b82f6}.upgrade-btn.ultra{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}.upgrade-btn:hover{filter:brightness(1.1);transform:translateY(-2px)}.upgrade-footer{display:flex;align-items:center;justify-content:center;gap:.5rem;color:var(--text-muted);font-size:.85rem}@keyframes fadeInOverlay{0%{opacity:0}to{opacity:1}}@keyframes slideUpModal{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@media(max-width:768px){.upgrade-options{grid-template-columns:1fr}.upgrade-modal{padding:2rem;width:95%;max-height:90vh;overflow-y:auto}}.mock-payment-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172ad9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:99999;padding:1rem}.mock-payment-modal{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;width:100%;max-width:400px;padding:2rem;box-shadow:0 25px 50px -12px #00000080;position:relative;animation:modal-slide-up .3s ease-out}@keyframes modal-slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.close-btn{position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}.close-btn:hover{background:#ffffff1a;color:var(--text-main)}.payment-header{text-align:center;margin-bottom:2rem}.payment-header h2{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:var(--text-main)}.payment-header p{color:var(--text-muted);font-size:.9rem}.payment-form{display:flex;flex-direction:column;gap:1.25rem}.form-group label{font-size:.85rem;font-weight:600;color:var(--text-muted)}.input-with-icon{position:relative;display:flex;align-items:center}.input-with-icon .icon{position:absolute;left:1rem;color:var(--text-muted)}.input-with-icon input{width:100%;background:var(--bg-main);border:1px solid var(--border-color);color:var(--text-main);padding:.75rem 1rem .75rem 2.75rem;border-radius:8px;font-size:1rem;outline:none;transition:all .2s}.input-with-icon input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #3b82f633}.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.pay-btn{background:var(--primary, #3b82f6);color:#fff;border:none;padding:1rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s;margin-top:1rem}.pay-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #3b82f64d}.pay-btn:disabled{opacity:.7;cursor:not-allowed}.loader{border:2px solid rgba(255,255,255,.2);border-left-color:#fff;border-radius:50%;width:20px;height:20px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.success-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:1rem;padding:2rem 0}.success-icon{color:#10b981;background:#10b9811a;padding:1rem;border-radius:50%;animation:pop .4s cubic-bezier(.175,.885,.32,1.275)}@keyframes pop{0%{transform:scale(0)}to{transform:scale(1)}}.success-state h3{font-size:1.5rem;color:var(--text-main);margin-bottom:.5rem}.success-state p{color:var(--text-muted)}.helpdesk-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease;padding:1rem}.helpdesk-modal{background:var(--bg-card);border-radius:16px;width:100%;max-width:500px;position:relative;box-shadow:0 20px 40px #0006;animation:slideUp .4s ease;overflow:hidden;border:1px solid var(--border-color)}.helpdesk-header{padding:1.5rem;border-bottom:1px solid var(--border-color);background:var(--bg-main);text-align:center}.helpdesk-header h2{margin:0;font-size:1.5rem;color:var(--text-main);display:flex;align-items:center;justify-content:center;gap:.5rem}.helpdesk-body{padding:2rem}.rating-container{display:flex;justify-content:center;gap:.5rem;margin-bottom:1.5rem}.star-btn{background:none;border:none;cursor:pointer;padding:.25rem;color:var(--border-color);transition:all .2s ease}.star-btn:hover{transform:scale(1.1)}.star-btn.active{color:#fbbf24}.helpdesk-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:600;color:var(--text-main);font-size:.95rem}.form-group textarea{width:100%;padding:1rem;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-main);color:var(--text-main);font-family:inherit;resize:vertical;min-height:120px;transition:border-color .2s ease}.form-group textarea:focus{outline:none;border-color:var(--primary)}.submit-btn{background:var(--primary);color:#fff;border:none;padding:1rem;border-radius:8px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease;display:flex;justify-content:center;align-items:center;gap:.5rem}.submit-btn:hover:not(:disabled){opacity:.9;transform:translateY(-2px)}.submit-btn:disabled{opacity:.7;cursor:not-allowed}.success-state{text-align:center;padding:3rem 2rem;color:var(--text-main)}.success-state p{color:var(--text-muted);margin-top:1rem}:root{--bg-main: #08111c;--bg-card: #0b1626;--bg-card-hover: #122033;--bg-input: #08111c;--border-color: rgba(255, 255, 255, .08);--text-main: #eef3f8;--text-muted: #9aabbf;--primary: #3d7ec4;--primary-hover: #2b6cb3;--primary-light: rgba(61, 126, 196, .15);--accent: #b8954a;--success: #10b981;--success-bg: rgba(16, 185, 129, .15);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .15);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .15);--shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, .5), 0 8px 10px -6px rgba(0, 0, 0, .3);--radius-lg: 16px;--radius-md: 12px;--radius-sm: 8px;--font-heading: "Outfit", sans-serif;--font-body: "Inter", sans-serif}[data-theme=light]{--bg-main: #f1f5f9;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--bg-input: #f1f5f9;--border-color: #e2e8f0;--text-main: #0f172a;--text-muted: #64748b;--primary: #1d4f86;--primary-hover: #163e6b;--primary-light: rgba(29, 79, 134, .1);--accent: #b8954a;--success: #059669;--success-bg: rgba(5, 150, 105, .1);--danger: #dc2626;--danger-bg: rgba(220, 38, 38, .1);--warning: #d97706;--warning-bg: rgba(217, 119, 6, .1);--shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, .08), 0 8px 10px -6px rgba(0, 0, 0, .04)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{max-width:100%;overflow-x:hidden}body{font-family:var(--font-body);background-color:var(--bg-main);color:var(--text-main);min-height:100vh}.app-boot-shell{min-height:100vh;background:var(--bg-main, #08111c)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--bg-card-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.app-container{display:flex;flex-direction:column;min-height:100vh;max-width:100%;overflow-x:hidden}.app-header{background:var(--bg-card);border-bottom:1px solid var(--border-color);padding:.5rem 1rem;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 4px 20px #0000001a}.header-badge{position:absolute;top:-5px;right:-5px;background:#ef4444;color:#fff;border-radius:50%;width:16px;height:16px;font-size:10px;display:flex;align-items:center;justify-content:center;font-weight:700}.header-desktop-utils{display:flex;align-items:center;gap:.5rem;margin-left:.45rem}.header-timer{display:flex;align-items:center;gap:.4rem;padding:.28rem .5rem;background:var(--bg-main);border:1px solid var(--border-color);border-radius:8px;color:var(--accent);flex-shrink:0}.header-timer.warning{color:var(--danger);border-color:var(--danger)}.header-timer b{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92rem;font-variant-numeric:tabular-nums;font-weight:700}.header-timer button{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;background:#ffffff0d;border:1px solid var(--border-color);border-radius:5px;color:inherit;cursor:pointer;padding:0}.header-mobile-stack,.exam-mobile-grid{display:none}.lesson-toolbar{margin-bottom:1.6rem;min-width:0}.lesson-back-btn{display:inline-flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.9rem;margin-bottom:.65rem;padding:0}.lesson-title{font-size:2rem;color:var(--text-main);margin:0 0 .75rem;line-height:1.25;overflow-wrap:anywhere}.lesson-progress-row{display:flex;align-items:center;gap:.65rem;min-width:0;width:100%}.lesson-progress-label{font-size:.92rem;font-weight:650;flex-shrink:0}.lesson-progress-bar{position:relative;flex:1;min-width:0;max-width:260px;height:26px;background:#fff;border:1px solid #cccccc;border-radius:13px;overflow:hidden;display:flex;align-items:center;box-shadow:0 1px 3px #0000001a}.lesson-progress-fill{height:100%;background:linear-gradient(90deg,#10b981,#059669);transition:width .4s ease;border-radius:13px}.lesson-progress-text{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;color:#000;letter-spacing:.02em;pointer-events:none}.lesson-reset-btn{flex-shrink:0;background:transparent;border:1px solid var(--danger);color:var(--danger);padding:.35rem .7rem;border-radius:var(--radius-sm);font-size:.82rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:.3rem}.lesson-tabs{display:flex;flex-wrap:wrap;gap:.45rem .7rem;margin-bottom:2rem;border-bottom:1px solid var(--border-color);padding-bottom:.75rem}.lesson-tab{background:none;border:none;cursor:pointer;font-size:1rem;font-weight:600;padding:.5rem 1rem;border-radius:var(--radius-sm);color:var(--text-muted);display:inline-flex;align-items:center;justify-content:center;gap:.35rem}.lesson-tab.on{color:var(--primary);background:var(--bg-card)}.lesson-tab .tab-short{display:none}.flashcard{min-height:300px}@media(max-width:600px){.app-header{padding:.5rem}}.header-inner{max-width:1680px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:.85rem}.header-top-row{display:flex;align-items:center;justify-content:space-between;gap:1rem}.header-bottom-row{display:flex;align-items:center;gap:.5rem}.menu-extra-actions{display:flex;align-items:center;gap:.5rem;margin-left:auto}.header-top-actions{display:flex;gap:.5rem;align-items:center}.header-brand{display:flex;align-items:center;gap:.75rem}.brand-icon{width:42px;height:42px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.25rem;box-shadow:0 4px 12px #3d7ec44d}.brand-copy{display:flex;flex-direction:column;min-width:0}.brand-title{font-size:1.35rem;font-weight:800;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text-main),var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.brand-welcome{display:block;margin-top:.12rem;font-size:.78rem;font-weight:500;color:var(--text-muted);letter-spacing:-.01em;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:16rem}.brand-welcome-name{font-weight:700;color:#9a7a38}.brand-plan{display:block;margin-top:.06rem;font-size:.7rem;font-weight:650;letter-spacing:.01em;color:#7b8ba0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:16rem}.brand-plan.paid{color:#9a7a38}.nav-menu-container{display:flex;align-items:center;gap:1rem}.menu-extra-actions{display:flex;align-items:center;gap:.25rem}.invite-balloon-wrap{position:relative;flex-shrink:0}.invite-fab.open{color:#b8944a}.invite-balloon{position:absolute;top:calc(100% + 10px);right:0;z-index:90;width:min(18.5rem,calc(100vw - 1.4rem));padding:.85rem .95rem .9rem;background:var(--bg-card, #fff);color:var(--text-main);border:1px solid rgba(184,148,74,.4);border-radius:14px;box-shadow:0 14px 36px #0f172a2e;font-size:.8rem;line-height:1.45;text-align:left}.invite-balloon:before{content:"";position:absolute;top:-6px;right:14px;width:12px;height:12px;background:var(--bg-card, #fff);border-left:1px solid rgba(184,148,74,.4);border-top:1px solid rgba(184,148,74,.4);transform:rotate(45deg)}.invite-balloon-close{position:absolute;top:.4rem;right:.4rem;border:none;background:transparent;color:var(--text-muted, #7b8ba0);cursor:pointer;padding:.2rem;display:flex;border-radius:6px}.invite-balloon-close:hover{color:var(--text-main);background:#0f172a0f}.invite-balloon p{margin:0;padding-right:1.2rem}.invite-balloon-kicker{margin-bottom:.35rem!important;font-size:.7rem;font-weight:700;letter-spacing:.02em;color:#9a7a38}.invite-balloon b{letter-spacing:.04em}.invite-balloon>button:not(.invite-balloon-close){margin-top:.7rem;width:100%;border:none;border-radius:8px;padding:.45rem .7rem;background:#b8944a;color:#fff;font-weight:700;font-size:.78rem;cursor:pointer}@media(max-width:768px){.invite-balloon{right:0;left:auto}}.menu-full-btn{display:flex;align-items:center;justify-content:center}.compact-icon-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--bg-main);border:1px solid var(--border-color);border-radius:6px;padding:0}.compact-btn-primary{padding:.25rem .75rem;font-size:.85rem;border-radius:6px}.btn-optical-header{display:flex;align-items:center;gap:4px;padding:.35rem .6rem;background:var(--primary-light);border:1px solid var(--primary);color:var(--primary);font-weight:700;font-size:.85rem;border-radius:6px;cursor:pointer;transition:all .2s ease}.btn-optical-header:hover{background:var(--primary-light);filter:brightness(1.15)}.center-nav-wrapper{display:flex;flex-direction:column;align-items:center;background:var(--bg-main);border:1px solid var(--border-color);border-radius:24px;padding:4px;box-shadow:0 4px 15px #00000014;z-index:10;gap:.2rem}.mode-switcher{display:flex}.mode-btn{background:transparent;border:none;color:var(--text-muted);padding:.35rem .75rem;font-size:.9rem;font-weight:600;border-radius:30px;cursor:pointer;display:flex;align-items:center;gap:.35rem;transition:all .2s ease}.mode-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 10px #3d7ec466}.timer-badge{display:flex;align-items:center;gap:.5rem;background:var(--bg-main);border:1px solid var(--border-color);padding:.45rem .9rem;border-radius:var(--radius-md);font-family:monospace;font-size:1rem;font-weight:700;color:var(--accent)}.timer-badge.warning{color:var(--danger);border-color:var(--danger);animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}.icon-btn{background:var(--bg-main);border:1px solid var(--border-color);color:var(--text-main);width:38px;height:38px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.icon-btn:hover{background:var(--bg-card-hover);border-color:var(--primary);color:var(--primary)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;border:none;padding:.55rem 1.25rem;font-size:.9rem;font-weight:600;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;gap:.5rem;box-shadow:0 4px 12px #3d7ec459;transition:all .2s ease}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 16px #3d7ec480}.main-content{flex:1;max-width:1400px;width:100%;margin:0 auto;padding:1.5rem;display:grid;grid-template-columns:1fr 340px;gap:1.5rem;min-width:0;overflow-x:hidden}@media(max-width:1024px){.main-content{grid-template-columns:1fr}}.question-container{display:flex;flex-direction:column;gap:1.25rem}.question-header-bar{display:flex;align-items:center;justify-content:space-between;background:var(--bg-card);padding:.85rem 1.25rem;border-radius:var(--radius-md);border:1px solid var(--border-color)}.category-pill{background:var(--primary-light);color:var(--primary);border:1px solid rgba(61,126,196,.3);padding:.35rem .85rem;border-radius:20px;font-size:.8rem;font-weight:700}.instruction-text{font-size:.85rem;color:var(--text-muted);font-style:italic}.question-main-layout.has-split-passage{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;align-items:start}.split-passage-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.5rem;line-height:1.8;font-size:.95rem;box-shadow:var(--shadow-lg);border-left:4px solid var(--accent);max-height:calc(100vh - 180px);overflow-y:auto;position:sticky;top:90px}@media(max-width:900px){.question-main-layout.has-split-passage{grid-template-columns:1fr}.split-passage-card{position:relative;top:auto;max-height:none;overflow-y:visible}}.passage-title{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);margin-bottom:.85rem;font-weight:700;display:flex;align-items:center;gap:.4rem;border-bottom:1px solid var(--border-color);padding-bottom:.5rem}.passage-body{color:var(--text-main);white-space:pre-line}.active-cloze-blank{background:var(--warning-bg);color:var(--warning);border:1.5px solid var(--warning);padding:.15rem .4rem;border-radius:var(--radius-sm);font-weight:800;margin:0 .2rem;box-shadow:0 0 8px #f59e0b66;animation:pulseBlank 2s infinite}@keyframes pulseBlank{0%{transform:scale(1)}50%{transform:scale(1.04)}to{transform:scale(1)}}.question-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.75rem;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:1.5rem}.question-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.question-number-badge{background:var(--primary);color:#fff;font-weight:800;font-size:1.1rem;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 10px #3d7ec466}.question-text{font-size:1.1rem;font-weight:600;line-height:1.6;flex:1;color:var(--text-main);white-space:pre-line}.flag-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-muted);padding:.5rem .85rem;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;gap:.4rem;font-size:.85rem;font-weight:600;transition:all .2s ease}.flag-btn.flagged{background:var(--warning-bg);color:var(--warning);border-color:var(--warning)}.options-grid{display:flex;flex-direction:column;gap:.75rem}.option-item{background:var(--bg-main);border:2px solid var(--border-color);border-radius:var(--radius-md);padding:1rem 1.25rem;display:flex;align-items:center;gap:1rem;cursor:pointer;transition:all .2s ease;font-size:.95rem;position:relative;overflow:hidden}.option-item:hover{border-color:var(--primary);background:var(--bg-card-hover);transform:translate(4px)}.option-item.selected{border-color:var(--primary);background:var(--primary-light);font-weight:600}.option-key{width:32px;height:32px;border-radius:50%;border:2px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;color:var(--text-muted);flex-shrink:0;transition:all .2s ease}.option-item.selected .option-key{background:var(--primary);border-color:var(--primary);color:#fff}.option-text{flex:1;line-height:1.5}.option-item.correct-answer{border-color:var(--success)!important;background:var(--success-bg)!important;color:var(--success)!important}.option-item.correct-answer .option-key{background:var(--success)!important;border-color:var(--success)!important;color:#fff!important}.option-item.wrong-answer{border-color:var(--danger)!important;background:var(--danger-bg)!important;color:var(--danger)!important}.option-item.wrong-answer .option-key{background:var(--danger)!important;border-color:var(--danger)!important;color:#fff!important}.solution-box{background:var(--bg-main);border:1px solid var(--primary);border-radius:var(--radius-md);padding:1.25rem;margin-top:1rem;animation:fadeIn .3s ease}.solution-header{font-weight:700;color:var(--primary);margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem;font-size:.95rem}.solution-text{font-size:.9rem;line-height:1.6;color:var(--text-main);white-space:pre-line}.blog-quiz-stem{font-size:1.1rem;color:var(--text-main);margin-bottom:1.35rem;line-height:1.6;font-weight:500}button.option-item{width:100%;text-align:left;font:inherit;color:inherit}button.option-item:disabled{cursor:default}.blog-quiz-options{margin-bottom:1.25rem}.blog-quiz-banner{padding:.85rem 1rem;border-radius:8px;font-weight:600;margin-bottom:1rem}.blog-quiz-banner.is-correct{background:var(--success-bg);color:var(--success);border:1px solid rgba(16,185,129,.35)}.blog-quiz-banner.is-wrong{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(239,68,68,.35)}.blog-quiz-submit,.blog-quiz-retry{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:none;border-radius:8px;font-weight:600;cursor:pointer}.blog-quiz-submit{width:100%;margin-top:.75rem;background:var(--primary);color:#fff;padding:.8rem 1.5rem;font-size:1rem;box-shadow:0 4px 12px #3d7ec44d}.blog-quiz-submit:disabled{opacity:.5;cursor:not-allowed}.blog-quiz-retry{margin-top:1rem;background:transparent;color:var(--text-muted);border:1px solid var(--border-color);padding:.55rem .9rem;font-size:.85rem}.blog-match{display:grid;gap:.85rem;margin-bottom:1.25rem}.blog-match-row{padding:.9rem 1rem;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-main)}.blog-match-row.is-correct{border-color:var(--success);background:var(--success-bg)}.blog-match-row.is-wrong{border-color:var(--danger);background:var(--danger-bg)}.blog-match-word{color:var(--text-main);font-weight:600;margin-bottom:.55rem}.blog-match-choices{display:flex;gap:.45rem;flex-wrap:wrap}.blog-match-chip{min-width:40px;height:36px;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-main);font-weight:700;cursor:pointer}.blog-match-chip.is-picked{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.blog-match-result{margin-top:.5rem;font-size:.85rem;color:var(--text-main)}.blog-match-legend{display:grid;gap:.35rem;color:var(--text-muted);font-size:.9rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.question-nav-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:.5rem}.btn-secondary{background:var(--bg-card);color:var(--text-main);border:1px solid var(--border-color);padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .2s ease}.btn-secondary:hover:not(:disabled){background:var(--bg-card-hover);border-color:var(--primary)}.btn-secondary:disabled{opacity:.4;cursor:not-allowed}.optical-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.25rem;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:1.25rem;height:fit-content;position:sticky;top:90px}.optical-title-row{display:flex;align-items:center;justify-content:space-between}.optical-title{font-size:1.1rem;font-weight:700;display:flex;align-items:center;gap:.5rem}.optical-legend{display:flex;gap:.75rem;font-size:.75rem;color:var(--text-muted)}.legend-item{display:flex;align-items:center;gap:.25rem}.legend-dot{width:10px;height:10px;border-radius:50%}.legend-dot.answered{background:var(--primary)}.legend-dot.flagged{background:var(--warning)}.legend-dot.blank{background:var(--bg-main);border:1px solid var(--border-color)}.optical-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;max-height:480px;overflow-y:auto;padding:6px}.opt-cell{background:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-sm);aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;font-size:.75rem;font-weight:700;position:relative;transition:all .2s ease}.opt-cell:hover{border-color:var(--primary);transform:scale(1.05)}.opt-cell.current{outline:2px solid var(--accent);outline-offset:1px}.opt-cell.answered{background:var(--primary);color:#fff;border-color:var(--primary)}.opt-cell.flagged:after{content:"★";position:absolute;top:1px;right:3px;font-size:.65rem;color:var(--warning)}.opt-val{font-size:.65rem;opacity:.8}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem;animation:fadeIn .2s ease}.modal-content{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:850px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);padding:2rem;display:flex;flex-direction:column;gap:1.5rem}.modal-header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);padding-bottom:1rem}.modal-title{font-size:1.4rem;font-weight:800;display:flex;align-items:center;gap:.6rem}.score-hero{background:linear-gradient(135deg,var(--primary-light),rgba(6,182,212,.15));border:1px solid var(--primary);border-radius:var(--radius-lg);padding:2rem;text-align:center;display:flex;flex-direction:column;align-items:center;gap:.75rem}.score-number{font-size:3.5rem;font-weight:800;font-family:var(--font-heading);color:var(--primary);line-height:1}.score-label{font-size:1.1rem;font-weight:600;color:var(--text-muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}@media(max-width:640px){.stats-grid{grid-template-columns:repeat(2,1fr)}}.stat-card{background:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.25rem;text-align:center}.stat-value{font-size:1.75rem;font-weight:800;margin-bottom:.25rem}.stat-value.correct{color:var(--success)}.stat-value.wrong{color:var(--danger)}.stat-value.blank{color:var(--text-muted)}.stat-value.net{color:var(--accent)}.stat-desc{font-size:.8rem;color:var(--text-muted);font-weight:600}.category-analysis{display:flex;flex-direction:column;gap:.85rem}.category-row{display:flex;flex-direction:column;gap:.35rem}.category-meta{display:flex;justify-content:space-between;font-size:.85rem;font-weight:600}.progress-bar-track{height:8px;background:var(--bg-main);border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .6s ease}.answer-key-table{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:.5rem}.ak-item{background:var(--bg-main);border:1px solid var(--border-color);padding:.5rem;border-radius:var(--radius-sm);text-align:center;font-size:.85rem}.ak-num{font-weight:700;color:var(--text-muted)}.ak-val{font-weight:800;color:var(--primary)}.locked{opacity:.6;cursor:not-allowed!important;background-color:#64748b0d!important}.locked:hover{background-color:#64748b1a!important;color:inherit!important}.lock-icon{opacity:.7}.blog-content h2,.blog-content h3{color:var(--text-main);margin-top:2rem;margin-bottom:1rem;font-family:Outfit,sans-serif}.blog-content p{margin-bottom:1.5rem;font-size:1.05rem;line-height:1.8;color:var(--text-secondary);text-align:justify}.blog-content strong{color:var(--primary)}.blog-content a{color:var(--accent);text-decoration:underline}.blog-content a:hover{color:var(--text-main)}.blog-content hr{border:0;height:1px;background:var(--border-color);margin:3rem 0}.blog-article,.blog-article-card{position:relative;overflow:hidden}.blog-article-cover{position:relative;overflow:hidden;min-height:200px}.blog-watermark{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:1;overflow:hidden}.blog-watermark-tile{position:absolute;top:-45%;right:-45%;bottom:-45%;left:-45%;background-image:url(/assets/yds-icon.svg);background-repeat:repeat;background-size:148px 148px;opacity:.08;transform:rotate(-22deg)}.blog-watermark-badge{position:absolute;right:.85rem;bottom:.85rem;padding:.28rem .7rem;border-radius:999px;background:#0b16269e;border:1px solid rgba(196,163,90,.5);color:#ead9a8;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-family:var(--font-heading)}.blog-watermark.is-compact .blog-watermark-tile{background-size:88px 88px;opacity:.16}.blog-watermark.is-compact .blog-watermark-badge{right:.65rem;bottom:.65rem;font-size:.62rem;padding:.2rem .55rem}.blog-article-body,.blog-article-card-body,.blog-article-title,.blog-content{position:relative;z-index:2}.blog-container{padding:2rem;max-width:1200px;margin:0 auto;width:100%;display:flex;gap:2rem;align-items:flex-start;box-sizing:border-box;min-width:0}.blog-main{flex:1;display:flex;flex-direction:column;min-width:0}.blog-content img,.blog-content video,.blog-content iframe,.blog-content table,.blog-content pre{max-width:100%}.blog-content *{overflow-wrap:anywhere}@media(max-width:768px){.blog-container{flex-direction:column;padding:.85rem .75rem 2rem;gap:1.1rem;max-width:100%;overflow-x:hidden}.blog-calendar{width:100%!important;max-width:100%;position:static!important;order:2}.blog-main{order:1;width:100%}.blog-hero{margin-bottom:1.1rem!important}.blog-hero-title{font-size:1.35rem!important;line-height:1.25;overflow-wrap:anywhere}.blog-hero-lead{font-size:.92rem!important;padding:0 .2rem}.blog-tabs{flex-direction:column;align-items:stretch;gap:.45rem!important;margin-bottom:1.4rem!important}.blog-tabs button{width:100%;padding:.65rem .85rem!important;font-size:.88rem!important}.blog-daily{margin-bottom:1.6rem!important}.blog-daily-head{flex-wrap:wrap;padding:.75rem .85rem!important;gap:.4rem!important}.blog-daily-head h2{font-size:.95rem!important;flex:1;min-width:0;overflow-wrap:anywhere}.blog-daily-date{margin-left:0!important;width:100%}.blog-daily-body{padding:1rem .85rem!important}.blog-grid{grid-template-columns:1fr!important;gap:1rem!important}.blog-article-cover{height:180px!important}.blog-article-body{padding:1.1rem .9rem!important}.blog-article-title{font-size:1.25rem!important}.blog-article-meta{flex-wrap:wrap;gap:.55rem!important;margin-bottom:1.2rem!important;padding-bottom:.85rem!important}.blog-content p,.blog-content{font-size:.95rem!important;text-align:left}}.archive-toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}.archive-toolbar h2{margin:0;font-size:1.45rem;color:var(--text-main);letter-spacing:-.03em}.archive-toolbar p{margin:.35rem 0 0;color:var(--text-muted);font-size:.92rem}.archive-filters{display:flex;gap:.5rem;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:2px}.archive-filter{min-height:44px;padding:.55rem 1rem;border-radius:999px;border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-muted);font-weight:700;font-size:.88rem;cursor:pointer;white-space:nowrap}.archive-filter.is-on{background:var(--primary);color:#fff;border-color:var(--primary)}.archive-day-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.archive-day-card{display:flex;flex-direction:column;gap:.85rem;min-height:160px;padding:1.15rem 1.2rem;border-radius:18px;border:1px solid var(--border-color);background:var(--bg-card);box-shadow:var(--shadow-lg);text-align:left;cursor:pointer;color:inherit;font:inherit}.archive-day-card:hover{transform:translateY(-3px);border-color:#1d4f8647}.archive-day-card.is-today{background:linear-gradient(180deg,rgba(29,79,134,.08),var(--bg-card))}.archive-day-card strong{font-size:1.05rem;color:var(--text-main)}.archive-day-meta{color:var(--text-muted);font-size:.82rem}.archive-type-pills{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:auto}.archive-pill{display:inline-flex;align-items:center;min-height:28px;padding:.15rem .55rem;border-radius:999px;font-size:.72rem;font-weight:700}.archive-pill.vocab{background:#0ea5e924;color:#0369a1}.archive-pill.grammar{background:#10b98124;color:#047857}.archive-pill.game{background:#8b5cf624;color:#6d28d9}.archive-quiz-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)}.archive-quiz-head{display:flex;align-items:center;gap:.75rem;padding:1rem 1.25rem;border-bottom:1px solid var(--border-color)}.archive-quiz-head.vocab{background:linear-gradient(90deg,rgba(14,165,233,.12),transparent)}.archive-quiz-head.grammar{background:linear-gradient(90deg,rgba(16,185,129,.12),transparent)}.archive-quiz-head.game{background:linear-gradient(90deg,rgba(139,92,246,.12),transparent)}.archive-quiz-head h3{margin:0;font-size:1.08rem;color:var(--text-main)}.archive-quiz-body{padding:1.35rem 1.25rem 1.5rem}.archive-empty{padding:2.5rem 1.25rem;text-align:center;border-radius:18px;border:1px dashed var(--border-color);background:var(--bg-card);color:var(--text-muted)}.archive-nav-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;flex-wrap:wrap;margin-bottom:1.25rem}.archive-nav-btn{min-height:44px;padding:.55rem 1rem;border-radius:12px;border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-main);font-weight:700;cursor:pointer}@media(max-width:1024px){.archive-day-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.blog-page-header{padding:.65rem .85rem!important;gap:.65rem!important}.blog-header-nav a:first-of-type{display:none}.archive-toolbar{align-items:stretch;flex-direction:column}.archive-day-grid{grid-template-columns:1fr}.archive-quiz-head,.archive-quiz-body{padding-left:.95rem;padding-right:.95rem}.blog-header-nav{width:100%;justify-content:flex-start}}@media(max-width:1024px){.main-content{grid-template-columns:1fr;padding:.5rem .5rem 8rem;gap:1rem}.app-header{padding:.5rem 1rem}.question-card{padding:1rem}.optical-card{position:fixed;bottom:0;left:0;width:100%;height:80vh;border-radius:24px 24px 0 0;z-index:10000;transform:translateY(110%);transition:transform .4s cubic-bezier(.175,.885,.32,1.275);box-shadow:0 -10px 40px #00000080;margin:0;top:auto}.app-container.sidebar-open .optical-card{transform:translateY(0)}.modal-content{padding:1.5rem 1rem}}.optical-backdrop-mobile{display:none}@media(max-width:1024px){.optical-backdrop-mobile{display:block}}@media(max-width:600px){.question-header-bar{flex-direction:column;align-items:flex-start;gap:.5rem}.question-title-row{flex-direction:column;align-items:flex-start}.question-number-badge{width:36px;height:36px;font-size:1rem}.question-text{font-size:1rem;height:auto;min-height:min-content;word-break:break-word}.option-item{padding:.75rem 1rem;font-size:.9rem}.hide-on-mobile{display:none}}.mobile-menu-btn,.mobile-only{display:none}.desktop-only{display:flex}@media(min-width:769px){.hide-on-desktop{display:none!important}.header-inner{flex-direction:row;align-items:center;justify-content:flex-start;gap:.75rem;width:100%}.header-top-row{flex:0 0 auto;justify-content:flex-start;gap:.55rem}.nav-menu-container{flex:1 1 auto;min-width:0;justify-content:space-between;gap:.75rem}.center-nav-wrapper{flex:1 1 auto;min-width:280px;align-items:stretch}.mode-switcher{width:100%}.mode-btn{flex:1;justify-content:center;white-space:nowrap}.desktop-active-title{display:flex;align-items:center;justify-content:center;gap:.35rem;width:100%;padding:0 .5rem .2rem}.desktop-active-label{font-size:.85rem;font-weight:600;color:var(--text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.menu-extra-actions{margin-left:0;flex-shrink:0;gap:.4rem}}@media(max-width:768px){.mobile-menu-btn{display:flex}.desktop-only{display:none!important}.mobile-only,.mobile-only-flex{display:flex}.app-header{padding:.45rem .7rem}.header-inner{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:.4rem;width:100%;max-width:100%;min-width:0}.header-top-row{width:100%;min-width:0;gap:.5rem;align-items:flex-start}.header-brand{min-width:0;flex:1;gap:.5rem}.brand-icon{width:32px;height:32px;flex-shrink:0;box-shadow:none}.brand-icon img{width:32px!important;height:32px!important}.brand-title{font-size:1.02rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-welcome{font-size:.7rem;max-width:11rem}.brand-plan{font-size:.64rem;max-width:11rem}.header-top-actions{flex-shrink:0;gap:0}.header-mobile-stack{display:flex;flex-direction:column;align-items:stretch;gap:.28rem}.header-mobile-stack .icon-btn{width:34px;height:34px;flex-shrink:0}.header-bottom-row,.header-bottom-group{width:100%;min-width:0}.exam-mobile-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.32rem;width:100%;min-width:0}.exam-grid-timer{grid-column:1 / -1;display:flex;align-items:center;gap:.35rem;min-width:0;padding:.28rem .45rem;background:var(--bg-main);border:1px solid var(--border-color);border-radius:7px;color:var(--accent)}.exam-grid-timer.warning{color:var(--danger);border-color:var(--danger)}.exam-grid-timer b{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92rem;font-variant-numeric:tabular-nums;letter-spacing:.03em;flex:1;min-width:0}.exam-grid-timer button{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;background:#ffffff0f;border:1px solid var(--border-color);border-radius:5px;color:inherit;cursor:pointer;flex-shrink:0;padding:0}.exam-grid-btn{min-width:0;display:flex;align-items:center;justify-content:center;gap:.25rem;padding:.38rem .2rem;border-radius:7px;border:1px solid var(--border-color);background:var(--bg-main);color:var(--text-main);font-size:.7rem;font-weight:700;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.exam-grid-btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.exam-grid-btn.danger{color:#ef4444;border-color:#ef444459}.lessons-page{padding:.85rem .15rem 2rem!important;max-width:100%!important;min-width:0;overflow-x:hidden}.lesson-title{font-size:1.15rem;margin-bottom:.55rem}.lesson-progress-row{gap:.4rem}.lesson-progress-label{font-size:.72rem}.lesson-progress-bar{max-width:none;height:20px;border-radius:10px}.lesson-progress-text{font-size:.68rem}.lesson-reset-btn{padding:.28rem .45rem;font-size:.7rem}.lesson-tabs{display:flex;gap:.28rem;margin-bottom:1rem;overflow:hidden;flex-wrap:nowrap;width:100%}.lesson-tab{flex:1 1 0;min-width:0;font-size:.72rem;padding:.42rem .28rem;gap:.2rem}.lesson-tab .tab-full{display:none}.lesson-tab .tab-short{display:inline}.lesson-tab-icon{width:13px;height:13px;flex-shrink:0}.flashcard{min-height:480px;height:min(64vh,560px)}.flashcard-front,.flashcard-back{padding:1rem .9rem!important;overflow-y:auto;-webkit-overflow-scrolling:touch;justify-content:flex-start!important}.flashcard-front h2{font-size:1.85rem!important;margin-top:1.4rem}.flashcard-back h3{font-size:1.25rem!important;margin-bottom:.65rem!important}.nav-menu-container{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;max-height:min(72vh,560px);overflow-y:auto;background:var(--bg-card);border-bottom:1px solid var(--border-color);padding:.85rem .75rem 1rem;box-shadow:0 10px 30px #00000080;z-index:102;gap:.65rem}.nav-menu-container.open{display:flex}.mobile-menu-backdrop{position:fixed;right:0;bottom:0;left:0;top:0;background:#0006;z-index:99;border:none;padding:0}.center-nav-wrapper{flex-direction:column;width:100%;border-radius:12px;padding:.5rem}.mode-switcher{flex-direction:column;width:100%;gap:.45rem}.mode-btn{width:100%;justify-content:flex-start;padding:.75rem .8rem;border-radius:8px}.mobile-menu-list{display:flex;flex-direction:column;gap:.4rem;width:100%}.mobile-menu-item{width:100%;display:flex;align-items:center;gap:.65rem;padding:.72rem .85rem;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-main);color:var(--text-main);font-weight:650;font-size:.9rem;cursor:pointer;text-align:left}.mobile-menu-item.danger{color:#ef4444;border-color:#ef444447}.desktop-active-title{display:none}.menu-active-title{display:flex;padding:.35rem .15rem .55rem;border-bottom:1px solid var(--border-color);font-weight:600;width:100%;gap:.5rem;align-items:center;color:var(--text-main);font-size:.88rem}.question-container{padding-bottom:70px;min-width:0}.question-nav-bar{position:fixed;bottom:0;left:0;width:100%;background:var(--bg-card);border-top:1px solid var(--border-color);padding:.5rem;z-index:9997;margin-top:0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 -4px 15px #0000001a}.question-nav-bar .btn-secondary,.question-nav-bar .btn-primary{flex:1;justify-content:center;padding:.5rem .2rem;font-size:.85rem}.question-nav-bar .btn-secondary span,.question-nav-bar .btn-primary span{font-size:.8rem}.question-header-bar{position:sticky;top:0;z-index:90;background:var(--bg-card);box-shadow:0 4px 10px #0000000d}.main-content{padding:.55rem .55rem 6.5rem;min-width:0}.question-header-bar{padding:.55rem .7rem}.question-card,.question-text,.instruction-text{min-width:0;overflow-wrap:anywhere}.option-item{min-width:0}.option-text{min-width:0;overflow-wrap:anywhere}.flashcard-container,.flashcard,.passage-card,.modal-content{max-width:100%;min-width:0}.flashcard-container{gap:.85rem!important}}
