:root{color-scheme:dark;--bg0:#0b0c0b;--bg1:#151613;--panel:rgba(16,17,15,0.94);--panel-2:rgba(21,22,19,0.96);--line:rgba(242,239,231,0.1);--line-strong:rgba(215,181,109,0.34);--text:#f2efe7;--muted:#b8b1a3;--faint:#726d64;--accent:#d7b56d;--warm:#f0cf7f;--ok:#5ddb7a;--bad:#ff7a7a}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:"Inter","Segoe UI",system-ui,sans-serif;color:var(--text);background:var(--bg0)}a{color:inherit}.page{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{position:relative;z-index:1000;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 28px;border-bottom:1px solid rgba(242,239,231,0.08);background:rgba(11,12,11,0.92);backdrop-filter:blur(20px)}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;text-decoration:none;letter-spacing:0}.brand-dot{width:9px;height:9px;border-radius:999px;background:var(--accent);box-shadow:none}.brand-lign{color:#a8cbe6}nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:12px}.nav-link{color:var(--muted);text-decoration:none;font-size:0.92rem;padding:8px 10px;border-radius:999px;border:1px solid transparent}.nav-link:hover,.nav-link.active{color:var(--text);border-color:rgba(242,239,231,0.18);background:rgba(242,239,231,0.045)}.wrap{min-height:0;display:grid;align-content:center;justify-items:center;padding:22px 24px 30px}.surface{width:min(1440px,100%);display:grid;gap:18px}.surface.playing{gap:0}h1{margin:0;text-align:center;font-size:clamp(1.8rem,4vw,3.4rem);line-height:1;letter-spacing:0}.surface.playing h1{display:none}.box{min-height:min(72vh,780px);border:1px solid rgba(255,255,255,0.1);border-radius:8px;background:var(--panel);box-shadow:0 28px 90px rgba(0,0,0,0.42);overflow:hidden;position:relative}.box.idle{display:grid;place-items:center;padding:clamp(20px,6vw,72px)}.box:not(.idle) .link-form{display:none}.link-form{width:min(760px,100%);display:grid;grid-template-columns:minmax(0,1fr) 58px;gap:10px}.url-input{width:100%;min-height:60px;border:1px solid rgba(255,255,255,0.12);border-radius:8px;padding:0 18px;color:var(--text);background:rgba(255,255,255,0.06);font:inherit;font-size:1rem;outline:none}.url-input:focus{border-color:var(--line-strong);box-shadow:0 0 0 4px rgba(215,181,109,0.12)}.submit{min-height:60px;border:1px solid rgba(215,181,109,0.44);border-radius:8px;color:#0a0a10;background:var(--accent);font:inherit;font-weight:900;cursor:pointer}.submit:disabled{cursor:wait;opacity:0.72}.player{display:grid;grid-template-rows:minmax(0,1fr) auto auto;min-height:min(76vh,860px);background:#03060d;outline:none;position:relative}.box.idle .player{display:none}.stage{position:relative;min-height:0;aspect-ratio:16 / 9;background:#03060d}.stage iframe,#ytPlayer{position:absolute;inset:0;width:100%;height:100%;border:0}.overlay{position:absolute;left:50%;bottom:clamp(34px,4vw,72px);transform:translateX(-50%);width:fit-content;max-width:min(92%,1160px);max-height:42vh;padding:clamp(14px,2vw,18px) clamp(18px,3vw,28px);border-radius:14px;border:1px solid rgba(255,255,255,0.06);background:rgba(6,6,14,0.65);box-shadow:0 4px 20px rgba(0,0,0,0.35);backdrop-filter:blur(12px);transition:opacity 0.15s ease,border-color 0.15s ease,box-shadow 0.15s ease;pointer-events:auto}.overlay[hidden],.overlay:empty{display:none !important}.box.overlay-off .overlay{opacity:0;pointer-events:none}.box.gloss-off .gloss{visibility:hidden}.box.mining-captured .overlay{border-color:rgba(245,158,11,0.55);box-shadow:0 0 20px rgba(245,158,11,0.28),0 4px 20px rgba(0,0,0,0.35)}.box.high-contrast .overlay{background:rgba(0,0,0,0.88);border-color:rgba(255,255,255,0.12);box-shadow:0 4px 24px rgba(0,0,0,0.6)}.plain-line{margin:0 0 8px;color:rgba(180,210,255,0.8);text-align:center;font-size:15px;font-weight:300;font-style:italic;line-height:1.4;padding:0 8px;text-shadow:none}.box.translation-off .plain-line{display:none}.gloss-line{display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:10px 16px;padding:8px 16px;direction:ltr}.word-pair{position:relative;display:flex;flex-direction:column;align-items:center;min-width:36px;border:0;padding:0 2px;color:inherit;background:transparent;font:inherit;cursor:default;text-align:center}.word-pair-aligned{align-items:stretch}.source-stack{position:relative;display:inline-flex;flex-direction:column;align-items:flex-start;align-self:center;max-width:100%;--root-stem-source-syllable-width:var(--original-font-size,clamp(1.45rem,3.4vw,2.5rem))}.source-stack.has-root-stem-layer{padding-top:max(12px,min(17px,calc(var(--original-font-size,2.5rem) * 0.32)))}.root-stem-label{position:absolute;top:0;left:var(--root-stem-left,calc(var(--root-stem-source-syllable-width) * 0.5));transform:translateX(-50%);display:block;color:rgba(255,255,255,0.84);font-family:var(--original-font-family,"Noto Sans KR","Malgun Gothic","Apple SD Gothic Neo",sans-serif);font-size:max(15px,min(22px,calc(var(--original-font-size,2.5rem) * 0.36)));font-weight:560;line-height:1;letter-spacing:0;text-align:center;text-shadow:0 1px 1px rgba(0,0,0,0.55);white-space:nowrap;pointer-events:none;user-select:none}.root-stem-placeholder{visibility:hidden}.word-pair:hover .original{color:var(--accent)}.word-pair:focus-visible{outline:2px solid rgba(215,181,109,0.72);outline-offset:5px}.original{color:var(--original-color,#fff);font-family:"Noto Sans KR","Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-size:var(--original-font-size,clamp(1.45rem,3.4vw,2.5rem));font-weight:500;line-height:1.05;text-shadow:none;transition:color 0.15s ease}.gloss{color:rgba(255,255,255,0.84);font-family:"Inter","Segoe UI",system-ui,sans-serif;font-size:var(--gloss-font-size,clamp(0.85rem,1.35vw,1rem));font-weight:300;font-style:italic;line-height:1.08;margin-top:var(--gloss-margin-top,8px);opacity:0.66;letter-spacing:0.01em;text-shadow:none}.text-bg{display:inline-block;background:transparent}.gloss.hidden{visibility:hidden}.original .text-bg{padding:0;margin:0}.gloss .text-bg{padding:0;margin:0}.ko-part,.gloss-part{display:inline-block}.gloss-aligned{display:flex;justify-content:center;gap:2px}.gloss-aligned .gloss-part{text-align:center;min-width:max-content;white-space:nowrap}.inline-part-separator{color:inherit}.ko-part.part-1{color:hsl(210,50%,78%)}.ko-part.part-2{color:hsl(160,45%,72%)}.ko-part.part-3{color:hsl(280,40%,78%)}.ko-part.part-4{color:hsl(35,55%,76%)}.ko-part.part-5{color:hsl(330,45%,78%)}.ko-part.part-6{color:hsl(210,50%,78%)}.gloss-part.part-1{color:hsl(210,62%,87%)}.gloss-part.part-2{color:hsl(154,78%,88%)}.gloss-part.part-3{color:hsl(280,48%,84%)}.gloss-part.part-4{color:hsl(35,68%,82%)}.gloss-part.part-5{color:hsl(330,58%,84%)}.gloss-part.part-6{color:hsl(210,62%,87%)}.grammar-insight-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:0 auto 10px;max-width:min(96%,960px)}.grammar-insight-chip{display:inline-flex;flex-direction:column;align-items:flex-start;gap:4px;padding:6px 11px;border-radius:14px;border:1px solid rgba(255,255,255,0.14);background:rgba(6,10,18,0.72);box-shadow:0 6px 18px rgba(0,0,0,0.24);color:rgba(255,255,255,0.92);line-height:1.2;backdrop-filter:blur(10px)}.grammar-insight-kicker{font-size:9px;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:rgba(255,255,255,0.5)}.grammar-insight-meaning{font-size:11px;font-weight:700}.grammar-insight-meta{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:10px;color:rgba(255,255,255,0.7)}.grammar-insight-surface{display:inline-flex;align-items:center;padding:1px 6px;border-radius:999px;background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.88);font-weight:600}.formality{position:absolute;top:-1px;transform:translateX(-50%);font-size:9px;color:rgba(255,255,255,0.55);pointer-events:none;letter-spacing:1px;line-height:1}.status-pill{position:absolute;left:50%;top:16px;z-index:6;transform:translateX(-50%);display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(255,255,255,0.08);border-radius:999px;color:rgba(255,255,255,0.78);background:rgba(8,8,12,0.76);backdrop-filter:blur(10px);padding:8px 13px;font-size:0.86rem;line-height:1.2;box-shadow:0 12px 34px rgba(0,0,0,0.3)}.status-pill[hidden]{display:none}.spinner{width:12px;height:12px;border-radius:999px;border:2px solid rgba(255,255,255,0.2);border-top-color:rgba(255,255,255,0.86);animation:spin 0.82s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.word-popup{position:fixed;z-index:10000;min-width:250px;max-width:360px;border:1px solid rgba(160,150,255,0.18);border-radius:14px;color:#eeeef5;background:hsla(235,25%,6%,0.94);box-shadow:0 16px 64px rgba(0,0,0,0.5),0 8px 24px rgba(0,0,0,0.3);backdrop-filter:blur(20px);padding:14px 18px;font-size:13px;animation:popupIn 0.2s cubic-bezier(0.16,1,0.3,1)}.word-popup[hidden]{display:none}@keyframes popupIn{from{opacity:0;transform:translateY(4px) scale(0.98)}to{opacity:1;transform:translateY(0) scale(1)}}.popup-header{display:flex;align-items:center;justify-content:space-between;gap:14px}.popup-original{font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-size:1.7rem;font-weight:800}.popup-close{border:0;color:#a8a8be;background:transparent;font-size:1.2rem;cursor:pointer}.popup-gloss{margin-top:4px;color:#a8a8be;font-size:1rem;font-weight:300;font-style:italic}.popup-parts{display:grid;gap:6px;margin-top:12px}.word-popup-part{display:flex;justify-content:space-between;gap:14px;border-radius:8px;background:rgba(255,255,255,0.04);padding:6px 8px}.word-popup-part-ko{font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-weight:800}.word-popup-part-en{color:#a8a8be;font-weight:300}.popup-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.popup-btn{border:1px solid rgba(160,150,255,0.16);border-radius:8px;color:#eeeef5;background:rgba(255,255,255,0.055);padding:6px 10px;font:inherit;cursor:pointer}.popup-btn:hover,.popup-btn.active{border-color:rgba(215,181,109,0.42);background:rgba(215,181,109,0.12)}.popup-detail{margin-top:12px;border-top:1px solid rgba(255,255,255,0.08);padding-top:10px;color:#c7c7d4;line-height:1.45}.popup-detail[hidden]{display:none}.dict-headword{color:#eeeef5;font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-weight:800}.dict-sense{margin-top:6px}.dict-num{color:var(--accent);font-weight:800;margin-right:4px}.dict-example{margin-top:4px;color:#85859a;font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif}.busy{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(255,255,255,0.1);overflow:hidden}.busy-fill{width:0%;height:100%;background:linear-gradient(90deg,var(--accent),var(--warm));transition:width 0.2s ease}.controls{display:flex;align-items:center;flex-wrap:wrap;gap:7px;padding:10px;border-top:1px solid rgba(255,255,255,0.08);background:rgba(11,12,11,0.98)}.ctrl{width:38px;height:38px;border:1px solid rgba(255,255,255,0.13);border-radius:8px;color:#edf4ff;background:rgba(255,255,255,0.055);font:inherit;font-size:0.88rem;font-weight:900;cursor:pointer}.ctrl:hover,.ctrl.active{border-color:rgba(215,181,109,0.5);background:rgba(215,181,109,0.12)}.ctrl.ok{border-color:rgba(93,219,122,0.54);background:rgba(93,219,122,0.14)}.ctrl:disabled{cursor:wait;opacity:0.58}.time{margin-left:auto;color:#9fb1c9;font-variant-numeric:tabular-nums;font-size:0.92rem}.loop-state{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;border-top:1px solid rgba(255,255,255,0.08);padding:8px 10px 9px;color:rgba(255,255,255,0.72);background:rgba(7,8,8,0.98);font-size:0.78rem;line-height:1.35}.loop-state-item{display:inline-flex;align-items:baseline;gap:6px;min-width:0}.loop-state-label{color:rgba(215,181,109,0.82);font-size:0.66rem;font-weight:900;letter-spacing:0.06em;text-transform:uppercase}.loop-state-value{min-width:0;color:rgba(255,255,255,0.78)}.loop-state a{color:#f0cf7f;text-decoration:none;border-bottom:1px solid rgba(240,207,127,0.34)}.loop-state a:hover{border-bottom-color:rgba(240,207,127,0.82)}.loop-state [hidden]{display:none !important}.drawer{position:absolute;top:12px;right:12px;bottom:62px;width:min(420px,calc(100% - 24px));border:1px solid rgba(255,255,255,0.12);border-radius:8px;background:rgba(8,10,18,0.94);box-shadow:0 24px 70px rgba(0,0,0,0.44);backdrop-filter:blur(18px);overflow:hidden;display:grid;grid-template-rows:1fr}.drawer[hidden]{display:none}.panel{min-height:0;overflow:auto;padding:10px}.panel[hidden]{display:none}.row{width:100%;display:grid;grid-template-columns:54px minmax(0,1fr);gap:10px;border:1px solid transparent;border-radius:8px;padding:9px;color:var(--text);background:transparent;text-align:left;font:inherit;cursor:pointer}.row.active{border-color:rgba(215,181,109,0.42);background:rgba(215,181,109,0.1)}.stamp{color:var(--accent);font-size:0.8rem;font-weight:900;font-variant-numeric:tabular-nums}.row-ko{display:block;font-family:"Noto Sans KR","Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-size:1rem;font-weight:800;line-height:1.35}.row-en{display:block;margin-top:5px;color:var(--muted);font-size:0.9rem;line-height:1.4}.reader .row{grid-template-columns:64px minmax(0,1fr);padding:13px}.reader .row-ko{font-size:1.18rem}.qa{display:grid;grid-template-rows:1fr auto;gap:10px;min-height:100%}.qa-log{min-height:0;overflow:auto;display:grid;align-content:start;gap:10px}.qa-bubble{border:1px solid rgba(255,255,255,0.1);border-radius:8px;padding:10px 12px;color:var(--text);background:rgba(255,255,255,0.055);line-height:1.5;white-space:pre-wrap}.qa-bubble.user{border-color:rgba(215,181,109,0.3)}.qa-form{display:grid;grid-template-columns:minmax(0,1fr) 42px;gap:8px}.qa-input{min-height:42px;border:1px solid rgba(255,255,255,0.12);border-radius:8px;color:var(--text);background:rgba(255,255,255,0.06);padding:0 12px;font:inherit;outline:none}.qa-submit{border:1px solid rgba(215,181,109,0.44);border-radius:8px;color:#0a0a10;background:var(--accent);font:inherit;font-weight:900;cursor:pointer}.error{position:absolute;left:12px;right:12px;top:12px;z-index:4;border:1px solid rgba(255,122,122,0.38);border-radius:8px;color:#ffe2e2;background:rgba(80,20,24,0.92);padding:10px 12px;font-size:0.92rem;line-height:1.45}.error[hidden],.notice[hidden],.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.notice{position:absolute;left:50%;top:16px;z-index:5;transform:translateX(-50%);max-width:min(92%,520px);border:1px solid rgba(255,255,255,0.08);border-radius:999px;color:rgba(255,255,255,0.72);background:rgba(8,8,12,0.76);backdrop-filter:blur(10px);padding:8px 14px;font-size:0.86rem;line-height:1.3;text-align:center;box-shadow:0 12px 34px rgba(0,0,0,0.3)}.notice.success{color:#9ef0bd;border-color:rgba(90,200,140,0.28)}.notice.error{color:#ffb8b8;border-color:rgba(240,96,96,0.3)}.hotkey-overlay{position:absolute;inset:0;z-index:30;display:grid;place-items:center;pointer-events:auto;background:rgba(0,0,0,0.38);backdrop-filter:blur(4px)}.hotkey-overlay[hidden]{display:none}.hotkey-panel{width:min(720px,calc(100% - 28px));max-height:calc(100% - 28px);overflow:auto;border:1px solid rgba(160,150,255,0.18);border-radius:8px;color:#eeeef5;background:hsla(235,25%,6%,0.94);box-shadow:0 16px 64px rgba(0,0,0,0.5),0 8px 24px rgba(0,0,0,0.3);padding:16px}.hotkey-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.hotkey-header strong{font-size:0.95rem}.hotkey-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px}.hotkey-group{border:1px solid rgba(255,255,255,0.08);border-radius:8px;padding:10px;background:rgba(255,255,255,0.035)}.hotkey-group-title{margin:0 0 8px;color:#a8a8be;font-size:0.78rem;text-transform:uppercase}.hotkey-row{display:grid;grid-template-columns:70px minmax(0,1fr);gap:10px;align-items:baseline;padding:4px 0}.hotkey-key{color:var(--accent);font-weight:900;font-variant-numeric:tabular-nums}.hotkey-desc{color:#d4d4de;font-size:0.88rem;line-height:1.35}@media (max-width:720px){.topbar{align-items:flex-start;flex-direction:column;padding:16px}nav{justify-content:flex-start}.wrap{padding:22px 12px 30px;align-content:start}h1{font-size:clamp(2rem,12vw,3rem)}.box,.player{min-height:68vh}.stage{aspect-ratio:9 / 12}.link-form{grid-template-columns:minmax(0,1fr) 54px}.overlay{bottom:18px;max-width:calc(100% - 16px);padding:12px 14px}.gloss-line{gap:10px 12px}.drawer{inset:auto 8px 58px 8px;width:auto;height:min(54vh,440px)}.time{flex-basis:100%;margin-left:0}.loop-state{align-items:flex-start}.loop-state-item{flex-basis:100%}}.topbar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:12px;margin-left:auto}.site-auth{position:relative;z-index:50;color:var(--text,#f2efe7);font:0.92rem/1.35 "Segoe UI","Inter",system-ui,sans-serif}.site-auth.is-floating{position:fixed;top:14px;right:14px;z-index:1200;color:#f2efe7}.site-auth[hidden]{display:none !important}.site-auth-trigger{display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:8px 12px;border:1px solid var(--panel-border,rgba(242,239,231,0.18));border-radius:4px;color:inherit;background:rgba(16,17,15,0.72);box-shadow:none;cursor:pointer;user-select:none;list-style:none}.site-auth-trigger::-webkit-details-marker{display:none}.site-auth-avatar{width:10px;height:10px;border-radius:2px;background:var(--muted,#94a3b8);box-shadow:0 0 0 3px rgba(242,239,231,0.08)}.site-auth.is-signed-in .site-auth-avatar{background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,0.2)}.site-auth-panel{position:absolute;top:calc(100%+10px);right:0;display:grid;gap:12px;width:min(340px,calc(100vw - 28px));padding:14px;border:1px solid rgba(148,163,184,0.28);border-radius:4px;color:#0f172a;background:rgba(255,255,255,0.98);box-shadow:0 22px 60px rgba(15,23,42,0.22)}.site-auth:not([open]) .site-auth-panel{display:none}.site-auth-copy,.site-auth-user{color:#475569;font-size:0.88rem;line-height:1.45}.site-auth-user{color:#0f172a;font-weight:760}.site-auth-copy.error{color:#b91c1c}.site-auth-copy.success{color:#047857}.site-auth-form{display:grid;gap:10px;min-inline-size:0;margin:0;padding:0;border:0}.site-auth-form label{display:grid;gap:5px;color:#1e293b;font-size:0.86rem;font-weight:700}.site-auth-form input{min-height:40px;width:100%;border:1px solid #cbd5e1;border-radius:4px;padding:8px 10px;color:#0f172a;background:#ffffff;font:inherit;font-weight:500}.site-auth-actions,.site-auth-session-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.site-auth-actions button,.site-auth-session-actions button{min-height:40px;border:1px solid #cbd5e1;border-radius:4px;padding:8px 10px;color:#0f172a;background:#ffffff;font:inherit;font-weight:760;cursor:pointer}.site-auth-actions button:first-child{border-color:var(--accent,#d7b56d);color:#0a0a10;background:var(--accent,#d7b56d)}.site-auth-actions button:disabled,.site-auth-session-actions button:disabled{cursor:wait;opacity:0.66}@media (max-width:760px){.topbar-actions{width:100%;justify-content:space-between}.site-auth{margin-left:auto}.site-auth.is-floating{top:10px;right:10px}body.stem-trainer-public .site-auth.is-floating{top:112px;right:12px}}