/* Accessibility — focus indicator (WCAG 2.4.7 Level AA). Without this, keyboard users can't see which control they've tabbed to. Browser defaults disappear against custom button styling on the warm-paper palette. :focus-visible avoids the ring on mouse clicks. Both apps import this file. */ :focus-visible { outline: 2px solid var(--accent, #a8442a); outline-offset: 2px; border-radius: 4px; } :root{ /* Warm "paper and ink" palette. The dark variant under :root[data-theme="dark"] mirrors each hue (NOT a black/grey flip) — same hue families, inverted luminance. The early-paint script in each HTML sets data-theme from localStorage + prefers-color-scheme. */ --paper:#f4ecdd; --paper-deep:#ece0c9; --paper-translucent:rgba(244,236,221,.86); --appbar-bg:rgba(244,236,221,.92); --accent-tint:rgba(168,68,42,.08); --accent-tint-strong:rgba(168,68,42,.12); --ink:#2a2622; --ink-soft:#5d564c; --rule:#d8c9a9; --accent:#a8442a; /* terracotta */ --accent-soft:#c2724f; --vocab:#1f5e54; /* deep teal for vocab */ --vocab-tint:rgba(31,94,84,.10); --vocab-tint-strong:rgba(31,94,84,.16); --vocab-tint-hover:rgba(31,94,84,.22); --vocab-loading:rgba(31,94,84,.08); --hl:#f6d365; /* highlighter amber */ --hl-edge:#e9b53c; --hl-stop:#f3c84a; --hl-fg:#2a2014; /* dark text on highlighter — stays dark in both modes */ --hl-hover:rgba(233,181,60,.18); --card:#fbf6ec; /* raised surface — one elevation up from paper */ --warn-bg:#fbeee6; --warn-fg:#8a3a23; --seg-active:#6b4f2a; /* warm wood — segmented "on" state, save-button border */ --seg-active-fg:#f4ecdd; --success:#2f7d32; /* "saved" green */ --success-fg:#ffffff; --banner-bg:#fff7e3; /* attention banner — Save-all */ --progress-bg:#ede1c4; /* in-progress saving */ --progress-edge:#c9a35a; --shadow-rgb:42,38,34; /* warm dark for box-shadows */ --body-wash:rgba(168,68,42,.06); /* subtle terracotta wash in body bg */ --body-light:rgba(255,255,255,.45); /* corner highlight in body bg */ --noise-opacity:.04; /* SVG noise overlay opacity */ } :root[data-theme="dark"]{ /* Candlelit-leather-notebook dark mode. Same hue families as light, luminance flipped. Accent + vocab get a luminance boost so they pop against the dark paper without losing identity. Highlighter slightly darkened to avoid retina blowout. */ --paper:#1c1813; --paper-deep:#13110e; --paper-translucent:rgba(28,24,19,.86); --appbar-bg:rgba(28,24,19,.92); --accent-tint:rgba(224,140,99,.10); --accent-tint-strong:rgba(224,140,99,.16); --ink:#ece1cf; --ink-soft:#a89c87; --rule:#3d342a; --accent:#e08c63; --accent-soft:#f0a988; --vocab:#5fc9b6; --vocab-tint:rgba(95,201,182,.12); --vocab-tint-strong:rgba(95,201,182,.20); --vocab-tint-hover:rgba(95,201,182,.28); --vocab-loading:rgba(95,201,182,.10); --hl:#c9a242; --hl-edge:#a88433; --hl-stop:#a88030; --hl-fg:#1a1408; /* still dark — amber stays light enough */ --hl-hover:rgba(201,162,66,.22); --card:#27211b; --warn-bg:#3a221a; --warn-fg:#f0a988; --seg-active:#d4ad6e; /* warm wood, brightened for dark */ --seg-active-fg:#1c1813; --success:#4eb853; /* brightened green so it pops on dark */ --success-fg:#0a1a0c; --banner-bg:#2d2418; /* warm dark amber banner */ --progress-bg:#3a2f1f; --progress-edge:#8a6f30; --shadow-rgb:0,0,0; --body-wash:rgba(224,140,99,.05); --body-light:rgba(255,235,200,.04); --noise-opacity:.06; } *{box-sizing:border-box;} html,body{margin:0;padding:0;} body{ background: radial-gradient(circle at 18% 12%, var(--body-light), transparent 38%), radial-gradient(circle at 85% 90%, var(--body-wash), transparent 45%), var(--paper); color:var(--ink); font-family:"Noto Serif TC", serif; -webkit-font-smoothing:antialiased; min-height:100vh; } body::before{ content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:var(--noise-opacity); background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E"); } .wrap{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:0 20px 180px;} /* Default link color — keep links themed (NOT browser default blue) anywhere that doesn't have its own override. Pages that want a different link color (.kicker a, .invite a, .defcard, etc.) still win at higher specificity. */ a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px;} a:hover{color:var(--accent-soft);} header{padding:34px 0 18px;} .kicker{ font-family:"Newsreader",serif;font-style:italic;font-size:15px;letter-spacing:.02em; color:var(--accent);margin-bottom:6px; } .kicker a{color:inherit;text-decoration:none;border-bottom:1px dotted var(--accent-soft);} h1{ font-family:"Noto Serif TC",serif;font-weight:700;font-size:34px;line-height:1.2; margin:0 0 4px;letter-spacing:.04em; } .sub{font-family:"Newsreader",serif;color:var(--ink-soft);font-size:15px;margin:0;} /* ---------- article picker ---------- */ .cards{display:flex;flex-direction:column;gap:16px;margin-top:8px;} a.card{ display:block;text-decoration:none;color:inherit; background:var(--card);border:1px solid var(--rule);border-radius:14px; padding:18px 20px;box-shadow:0 6px 22px -16px rgba(var(--shadow-rgb),.5); transition:.18s; } a.card:hover{border-color:var(--accent-soft);transform:translateY(-2px); box-shadow:0 12px 28px -16px rgba(var(--shadow-rgb),.55);} a.card .ckicker{font-family:"Newsreader",serif;font-style:italic;font-size:13px;color:var(--accent);} a.card h2{font-family:"Noto Serif TC",serif;font-weight:700;font-size:26px;margin:4px 0 6px;letter-spacing:.03em;} a.card .cblurb{font-family:"Newsreader",serif;font-size:14.5px;color:var(--ink-soft);line-height:1.5;margin:0;} a.card .meta{margin-top:10px;font-family:"Newsreader",serif;font-size:12.5px;color:var(--accent-soft); display:flex;gap:14px;} .empty{font-family:"Newsreader",serif;color:var(--ink-soft);font-style:italic;margin-top:20px;} /* ---------- controls ---------- */ .panel{ position:sticky;top:0;z-index:30;margin:14px 0 26px; background:var(--paper-translucent);backdrop-filter:blur(8px); border:1px solid var(--rule);border-radius:14px; box-shadow:0 6px 22px -14px rgba(var(--shadow-rgb),.5); padding:12px 14px; } .row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;} .row + .row{margin-top:10px;} button.ctrl{ font-family:"Newsreader",serif;font-size:15px;cursor:pointer; border:1px solid var(--rule);background:var(--card);color:var(--ink); padding:9px 16px;border-radius:10px;transition:.18s; display:inline-flex;align-items:center;gap:7px; } button.ctrl:hover{border-color:var(--accent-soft);color:var(--accent);} button.ctrl:active{transform:translateY(1px);} button.primary{background:var(--accent);color:var(--card);border-color:var(--accent);} button.primary:hover{background:var(--accent-soft);color:var(--paper);} button.ctrl[disabled]{opacity:.4;cursor:not-allowed;} .seg-ctrl{display:flex;align-items:center;gap:8px;flex:1;min-width:170px;} label.lbl{font-family:"Newsreader",serif;font-size:13px;color:var(--ink-soft);white-space:nowrap;} input[type=range]{flex:1;accent-color:var(--accent);min-width:90px;} select{ font-family:"Newsreader",serif;font-size:13px;color:var(--ink); background:var(--card);border:1px solid var(--rule);border-radius:8px;padding:6px 8px;max-width:100%; } .rate-val{font-family:"Newsreader",serif;font-size:13px;color:var(--accent);min-width:34px;text-align:right;} .spin{ display:inline-block;width:13px;height:13px;border:2px solid var(--accent-soft); border-top-color:transparent;border-radius:50%;animation:sp .7s linear infinite;vertical-align:-2px; } @keyframes sp{to{transform:rotate(360deg);}} .notice{ background:var(--warn-bg);border:1px solid var(--accent-soft);color:var(--warn-fg); border-radius:10px;padding:10px 12px;font-family:"Newsreader",serif;font-size:14px; margin-top:10px;display:none; } /* ---------- article body ---------- */ .divider{display:flex;align-items:center;gap:14px;margin:26px 4px;color:var(--rule);} .divider::before,.divider::after{content:"";height:1px;background:var(--rule);flex:1;} .divider span{font-family:"Newsreader",serif;font-style:italic;font-size:12px;color:var(--accent-soft);letter-spacing:.18em;} p.para{margin:0 0 22px;line-height:2.15;font-size:20px;position:relative;padding-left:34px;} .pnum{ position:absolute;left:0;top:4px;font-family:"Newsreader",serif;font-style:italic; font-size:14px;color:var(--accent-soft); } .seg{border-radius:5px;transition:background .25s,color .25s,box-shadow .25s;padding:1px 0;cursor:pointer;} .seg:hover{background:var(--hl-hover);} .seg.loading{background:var(--vocab-loading);box-shadow:inset 0 -2px 0 var(--vocab);} .seg.active{ background:linear-gradient(180deg,var(--hl) 0%, var(--hl-stop) 100%); box-shadow:0 0 0 1px var(--hl-edge), 0 2px 0 var(--hl-edge); color:var(--hl-fg); } .vocab{ color:var(--vocab);background:var(--vocab-tint); border-bottom:2px dotted var(--vocab);border-radius:3px 3px 0 0; padding:0 1px;cursor:pointer; } .seg.active .vocab{background:var(--vocab-tint-strong);} .vocab:hover{background:var(--vocab-tint-hover);} /* ---------- definition card ---------- */ .defcard{ position:fixed;left:50%;bottom:18px;transform:translate(-50%,140%); width:min(560px,calc(100% - 32px));z-index:40; background:var(--card);border:1px solid var(--rule); border-radius:16px;box-shadow:0 18px 50px -18px rgba(var(--shadow-rgb),.65); padding:18px 20px;transition:transform .32s cubic-bezier(.2,.8,.25,1); } .defcard.show{transform:translate(-50%,0);} .defcard .han{font-size:30px;font-weight:700;letter-spacing:.04em;} .defcard .alt{font-size:15px;color:var(--ink-soft);margin-left:8px;} .defcard .py{font-family:"Newsreader",serif;font-style:italic;font-size:18px;color:var(--accent);margin:6px 0 8px;} .defcard .en{font-family:"Newsreader",serif;font-size:16px;line-height:1.45;color:var(--ink);} .defcard .close{ position:absolute;top:10px;right:12px;border:none;background:none;cursor:pointer; font-size:22px;color:var(--ink-soft);line-height:1; } .legend{font-family:"Newsreader",serif;font-size:13px;color:var(--ink-soft);margin-top:10px;display:flex;gap:16px;flex-wrap:wrap;} .legend i{font-style:normal;} .swatch{display:inline-block;width:13px;height:13px;border-radius:3px;vertical-align:-2px;margin-right:5px;} /* estimated-level footnote, shown only on our own (non-GLOSS) homework articles */ .levelnote{ font-family:"Newsreader",serif;font-style:italic;font-size:14px;line-height:1.6; color:var(--ink-soft);border-top:1px solid var(--rule);margin-top:30px;padding-top:14px; }