:root{--bg: #f7f6f2;--card: #ffffff;--surface-2: #faf9f6;--ink: #201d18;--ink-soft: #555046;--ink-faint: #8b8578;--primary: #a83c2b;--primary-deep: #8c2f20;--primary-tint: #f6ebe8;--accent: #a83c2b;--lapis: #3c5a7d;--vine: #55803e;--gold: #a08028;--line: #e4e0d6;--line-soft: #efece5;--ok-bg: #eef3e9;--bad-bg: #f9ecea;--shadow: 0 1px 2px rgba(32, 29, 24, .05);--shadow-md: 0 4px 16px rgba(32, 29, 24, .1);--radius: 8px;--radius-sm: 6px;--font-ui: "Instrument Sans", system-ui, sans-serif;--font-display: "Fraunces", serif;--font-hy: "Noto Serif Armenian", serif;--font-mono: "DM Mono", monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-ui);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55}.shell,.auth-wrap{zoom:var(--ui-zoom, 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.brand{text-align:center;margin-bottom:2px;font-size:22px;padding:0}.auth-card .brand .hy{font-size:30px}.auth-card .brand-sub{text-align:center;margin-bottom:22px;padding:0}.auth-tabs{display:flex;gap:4px;margin-bottom:16px;background:var(--surface-2);border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:3px}.auth-tabs button{flex:1;font-family:var(--font-ui);font-weight:600;font-size:13px;padding:6px;border-radius:4px;border:none;background:transparent;color:var(--ink-soft);cursor:pointer}.auth-tabs button.active{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}.auth-field{margin-bottom:11px}.auth-field label{display:block;font-size:12.5px;font-weight:550;color:var(--ink-soft);margin-bottom:4px}.auth-divider{display:flex;align-items:center;gap:10px;color:var(--ink-faint);font-size:12px;margin:16px 0}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--line)}.settings-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:20px;align-items:start}@media(max-width:760px){.settings-layout{grid-template-columns:1fr}}.settings-nav{display:flex;flex-direction:column;gap:1px;position:sticky;top:20px}.settings-nav button{display:flex;align-items:center;gap:9px;font:inherit;font-size:13.5px;font-weight:500;text-align:left;padding:7px 10px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--ink-soft);cursor:pointer}.settings-nav button svg{color:var(--ink-faint)}.settings-nav button:hover{background:var(--surface-2);color:var(--ink)}.settings-nav button.active{background:var(--primary-tint);color:var(--primary)}.settings-nav button.active svg{color:var(--primary)}.settings-nav .signout{margin-top:12px;border-top:1px solid var(--line-soft);border-radius:0;padding-top:12px;color:var(--primary)}.settings-nav .signout svg{color:var(--primary)}.flashcard{perspective:1200px;max-width:480px;margin:0 auto}.flashcard-inner{position:relative;min-height:260px;border-radius:12px;transform-style:preserve-3d;transition:transform .45s cubic-bezier(.4,.1,.2,1);cursor:pointer}.flashcard-inner.flipped{transform:rotateY(180deg)}.flash-face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;border-radius:12px;border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);padding:28px;text-align:center}.flash-face.back{transform:rotateY(180deg);border-color:var(--primary)}.flash-face .big-hy{font-family:var(--font-hy);font-size:38px;font-weight:600;line-height:1.2}.flash-face .big-en{font-size:24px;font-weight:600}.flash-face .hint{color:var(--ink-faint);font-size:11px;letter-spacing:.08em;text-transform:uppercase}.grade-row{display:flex;gap:8px;justify-content:center;margin-top:20px}.grade{font-family:var(--font-ui);font-weight:600;font-size:13px;padding:7px 16px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card);cursor:pointer;transition:border-color .12s,background .12s}.grade.again{color:var(--primary)}.grade.again:hover{border-color:var(--primary);background:var(--bad-bg)}.grade.hard{color:var(--gold)}.grade.hard:hover{border-color:var(--gold);background:#f8f4e7}.grade.good{color:var(--vine)}.grade.good:hover{border-color:var(--vine);background:var(--ok-bg)}.grade.easy{color:var(--lapis)}.grade.easy:hover{border-color:var(--lapis);background:#eef2f7}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:18px;align-items:start}.practice-summary{position:sticky;top:20px}.drill-row{display:flex;align-items:center;gap:11px;width:100%;text-align:left;font:inherit;padding:9px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);cursor:pointer;transition:border-color .12s,background .12s;margin-bottom:5px}.drill-row:hover{border-color:var(--ink-faint)}.drill-row.on{border-color:var(--primary);background:var(--primary-tint)}.drill-row .box{width:17px;height:17px;border-radius:4px;border:1.5px solid var(--line);display:grid;place-items:center;color:#fff;flex-shrink:0;background:var(--card)}.drill-row.on .box{background:var(--primary);border-color:var(--primary)}.drill-row .drill-name{font-weight:600;font-size:13px}.drill-row .drill-blurb{font-size:12px;color:var(--ink-faint)}.drill-row .acc{margin-left:auto;font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);white-space:nowrap}.quickstart{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px}.quickstart-card{display:flex;flex-direction:column;align-items:flex-start;gap:5px;font:inherit;text-align:left;padding:14px 16px;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);cursor:pointer;transition:border-color 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.1s;display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}.arm-key:hover{background:var(--surface-2)}.arm-key:active{transform:translateY(1px)}.arm-key.wide{min-width:48px}.tutor-shell{display:flex;flex-direction:column;min-height:calc(100vh - 130px)}.chat-log{flex:1;display:flex;flex-direction:column;gap:10px}.chat-msg{max-width:76%;padding:10px 14px;border-radius:10px;font-size:14px;line-height:1.6;white-space:pre-wrap}.chat-msg .hy{font-size:15px}.chat-msg.user{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:3px}.chat-msg.assistant{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-bottom-left-radius:3px;box-shadow:var(--shadow)}.search-trigger{width:100%;font-family:var(--font-ui);font-size:13px;color:var(--ink-faint);padding:7px 10px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface-2);cursor:pointer;margin-bottom:14px;display:flex;align-items:center;gap:8px}.search-trigger:hover{border-color:var(--ink-faint);color:var(--ink-soft)}.search-trigger kbd{margin-left:auto;font-family:var(--font-mono);font-size:10.5px;border:1px solid var(--line);border-radius:4px;padding:0 5px;background:var(--card)}.search-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#201d1866;display:flex;justify-content:center;align-items:flex-start;padding:12vh 16px 0;animation:fade-in .12s ease}.search-box{width:100%;max-width:540px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-md);padding:10px}.search-hits{margin-top:6px;max-height:50vh;overflow-y:auto}.search-hit{display:grid;grid-template-columns:auto auto 1fr;gap:9px;align-items:baseline;width:100%;text-align:left;font:inherit;font-size:13.5px;padding:8px 9px;border:none;border-radius:var(--radius-sm);background:transparent;cursor:pointer}.search-hit:hover,.search-hit.active{background:var(--surface-2)}.dialogue-line{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:18px;padding:8px 12px;border-radius:var(--radius-sm);align-items:baseline}.dialogue-line:nth-child(odd){background:var(--surface-2)}.dialogue-line .hy{font-size:15.5px}.dialogue-line .en{color:var(--ink-soft);font-size:12.5px}.dialogue-line .en.hidden-en{filter:blur(6px);cursor:pointer;transition:filter .2s}.dialogue-line .en.hidden-en:hover{filter:blur(0)}.roleplay-current{padding:14px;border:1px dashed var(--line);border-radius:var(--radius);margin-top:10px;background:var(--surface-2)}.reader-text{font-family:var(--font-hy);font-size:18px;line-height:2;white-space:pre-wrap}.drop-zone{border:1px dashed var(--line);border-radius:var(--radius);padding:20px;text-align:center;color:var(--ink-soft);font-size:13.5px;background:var(--surface-2);transition:background .12s,border-color .12s}.drop-zone.over{background:var(--primary-tint);border-color:var(--primary)}.word-row{display:flex;align-items:center;gap:11px;padding:8px 2px;border-bottom:1px solid var(--line-soft);font-size:13.5px}.word-row:last-child{border-bottom:none}.word-row .w-hy{font-family:var(--font-hy);font-size:16px;font-weight:600;min-width:120px}.word-row .w-en{color:var(--ink-soft);font-size:13px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.word-row .actions{display:flex;gap:5px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spread{justify-content:space-between}.muted{color:var(--ink-faint);font-size:12.5px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin:14px 0}.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;text-align:center}.stat .n{font-size:22px;font-weight:650;color:var(--ink)}.stat .l{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}.dash-grid.three{grid-template-columns:1fr 1fr 1fr}@media(max-width:1000px){.dash-grid.three{grid-template-columns:1fr 1fr}}@media(max-width:760px){.dash-grid,.dash-grid.three{grid-template-columns:1fr}}.prog-row{display:flex;justify-content:space-between;align-items:baseline;margin-top:8px}.prog-label{font-size:13px;color:var(--ink-soft)}.prog-num{font-family:var(--font-mono);font-size:11.5px;color:var(--ink-faint)}.box-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}.wotd .wotd-hy{font-family:var(--font-hy);font-size:30px;font-weight:600;line-height:1.2;margin-bottom:2px}.fade-in{animation:fade-in .25s ease}@keyframes fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.spinner{display:inline-block;width:15px;height:15px;border:2px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.mobile-nav{display:none}@media(max-width:900px){.shell{flex-direction:column}.sidebar{width:100%;height:auto;position:static;padding:12px 16px 8px;flex-direction:row;align-items:center;gap:12px;border-right:none;border-bottom:1px solid var(--line)}.sidebar .nav,.sidebar .brand-sub,.sidebar-account{display:none}.sidebar .search-trigger{width:auto;margin:0 0 0 auto}.sidebar .search-trigger kbd{display:none}.brand{font-size:15px;padding:0}.brand .hy{font-size:16px;display:inline;margin-right:7px}.main{padding:18px 16px 92px}.page-title{font-size:21px}.example,.dialogue-line{grid-template-columns:1fr;gap:3px}.chat-msg{max-width:92%}.popover{width:min(330px,calc(100vw - 24px))}.arm-key{min-width:27px;font-size:13.5px;padding:6px 2px}.practice-layout{grid-template-columns:1fr}.practice-summary{position:static}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:90;background:var(--card);border-top:1px solid var(--line);padding:5px 4px calc(5px + env(safe-area-inset-bottom));justify-content:space-around}.mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;color:var(--ink-faint);font-size:10px;font-weight:550;padding:4px 9px;border-radius:var(--radius-sm)}.mobile-nav a.active{color:var(--primary);background:var(--primary-tint)}}