/* Study surfaces: original typography, restrained color, no decorative emoji. */
.study-eyebrow{font-size:var(--text-meta);letter-spacing:.09em;color:var(--accent);font-weight:700}
.study-dashboard{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;padding:30px;border:1px solid #343c28;border-radius:24px;background:radial-gradient(ellipse at 0 0,#263020 0,transparent 65%),#141619;margin:12px 0 20px}
.study-main h2{font-size:26px;letter-spacing:-.05em;margin:10px 0}.study-main h2 b{font:600 48px 'Space Grotesk',sans-serif;color:var(--accent)}
.study-main p,.study-calendar p{font-size:var(--text-meta);color:#adb5aa;line-height:1.6;margin:8px 0}.study-stats{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px;font-size:var(--text-meta);color:#abb2a5}.study-stats b{color:#edf3e6;margin-left:4px}
.study-calendar{align-self:center}.study-week-title{display:flex;justify-content:space-between;font-size:var(--text-meta);margin-bottom:18px}.study-week-title span{color:var(--accent)}
.study-week{display:grid;grid-template-columns:repeat(7,1fr);gap:7px}.study-day{display:grid;justify-items:center;gap:8px;font-size:var(--text-meta);color:#a5aea0}.study-day b{display:grid;place-items:center;width:34px;height:38px;border-radius:12px;background:#252a24;color:#a5aea0;font:500 14px 'Space Grotesk',sans-serif}.study-day.is-done b{background:var(--accent);color:#172200}.study-day.is-today b{outline:1px solid var(--accent);outline-offset:3px}
.study-discover{display:flex;justify-content:space-between;align-items:center;gap:20px;border:1px solid #394050;background:linear-gradient(115deg,#1b2236,#151720);border-radius:20px;padding:24px;margin-bottom:24px;text-decoration:none;color:#f2f3f6}.study-discover>span{display:grid;gap:8px}.study-discover small{color:#b6bfff;font-size:var(--text-meta)}.study-discover strong{font-size:19px;line-height:1.5}.study-discover span span{font-size:var(--text-meta);color:#a7acc0}.study-discover>b{font-size:var(--text-meta);white-space:nowrap;color:#d3daff}
.study-arrival{position:fixed;z-index:160;bottom:calc(96px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:min(520px,calc(100% - 32px));display:flex;align-items:center;gap:16px;justify-content:space-between;background:#e8f5c7;color:#18220c;padding:18px 22px;border-radius:18px;box-shadow:0 12px 50px #0006}.study-arrival[hidden]{display:none}.study-arrival strong{display:block;font-size:15px}.study-arrival span{display:block;font-size:var(--text-meta);margin-top:5px}.study-arrival button{background:transparent;border:0;padding:10px;font:inherit;font-size:var(--text-meta);color:inherit;cursor:pointer}
.opic-hub{scroll-margin-top:90px;margin:24px 0 48px}.opic-heading{display:flex;justify-content:space-between;gap:20px;padding:32px;border-radius:24px 24px 0 0;background:radial-gradient(ellipse at 95% 10%,#354020,transparent 65%),#191d17}.opic-heading h2{font-size:34px;line-height:1.3;letter-spacing:-.06em;margin:12px 0}.opic-heading p{font-size:14px;line-height:1.7;color:#afb7a7}.opic-count{align-self:center;text-align:right;flex-shrink:0}.opic-count b{display:block;font:500 40px 'Space Grotesk',sans-serif;color:var(--accent)}.opic-count small{font-size:18px;color:#9ba88e}.opic-count>span{font-size:var(--text-meta);color:#b4beaa}
.opic-pick{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#c1ff1a;color:#142100;padding:22px 32px;text-decoration:none;border-radius:0 0 20px 20px}.opic-pick small{display:block;font-size:var(--text-meta);margin-bottom:7px}.opic-pick strong{font-size:19px}.opic-pick>span:last-child{white-space:nowrap;font-size:var(--text-meta);font-weight:700}
.opic-tools{margin:24px 0 12px;display:grid;gap:18px}.opic-search{display:flex;gap:14px;align-items:center;font-size:var(--text-meta)}.opic-search input{max-width:420px;width:100%;padding:13px 16px;border-radius:12px;background:#17191f;color:#fff;border:1px solid #34383f;font:inherit}.opic-filters{display:flex;flex-wrap:wrap;gap:8px}.opic-filters button{cursor:pointer;font:inherit;font-size:var(--text-meta);background:#1c1e24;border:1px solid #363942;color:#b9bec9;border-radius:30px;padding:10px 16px}.opic-filters button[aria-pressed=true]{background:#e3eaca;color:#192014;border-color:#e3eaca}.opic-results{font-size:var(--text-meta);color:#a9aeb9}
.opic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;align-items:start}.opic-note{font-size:var(--text-meta);line-height:1.8;color:#8f96a3;margin-top:22px}.opic-filters button:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}
@media(max-width:760px){.study-dashboard{grid-template-columns:1fr;padding:22px;gap:24px}.study-main h2{font-size:24px}.study-calendar{max-width:440px;width:100%}.study-discover{align-items:flex-start;flex-direction:column;padding:20px}.opic-heading{padding:24px;gap:10px}.opic-heading h2{font-size:28px}.opic-heading p{font-size:var(--text-meta)}.opic-count b{font-size:30px}.opic-count small{font-size:14px}.opic-pick{padding:20px 24px}.opic-pick strong{font-size:16px}.opic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.opic-search>span{white-space:nowrap}}
@media(max-width:400px){.opic-heading{padding:20px}.opic-heading h2{font-size:25px}.opic-count{display:none}.study-day b{width:30px}.study-dashboard{padding:20px}}
.study-start{display:inline-block;color:var(--accent);font-size:var(--text-meta);font-weight:700;text-decoration:none;margin-top:18px}.opic-more{display:block;margin:20px auto;padding:13px 24px;border:1px solid #4b5440;border-radius:24px;background:#20271b;color:#dbe9c8;font:inherit;font-size:var(--text-meta);cursor:pointer}.opic-more[hidden]{display:none}

/* Readable type floors apply equally to narrow screens. */
.study-main p,.study-calendar p,.opic-heading p{font-size:var(--text-body)}
.study-start,.study-discover>b,.opic-pick>span:last-child,.opic-search,.opic-filters button,.opic-more,.study-arrival button{font-size:var(--text-control);min-height:44px}
.study-start{display:inline-flex;align-items:center}
.opic-pick{flex-wrap:wrap}.opic-search input{min-width:0;font-size:var(--text-control)}
.ha-sub,.ha-slot-name,.ha-chip,.ha-q-sub{font-size:var(--text-meta)}
.lesson-page{max-width:800px;margin:20px auto 64px;line-height:1.75;font-size:var(--text-body)}
.lesson-back{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);font-size:var(--text-control);margin-bottom:24px}
.lesson-page h1{font-size:clamp(28px,5vw,40px);line-height:1.35;letter-spacing:-.04em;margin:12px 0}
.lesson-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:var(--text-meta);color:var(--muted)}
.lesson-intro{color:#bac0cc;margin:16px 0 32px}
.lesson-section{padding:24px 0;border-top:1px solid #343740}
.lesson-section h2{font-size:20px;margin:0 0 16px}.lesson-section p{margin:0}
.lesson-question{font-size:clamp(21px,4vw,27px);line-height:1.6;color:#e5edda}
.lesson-section ul{padding-left:22px;margin:0}.lesson-section li+li{margin-top:12px}
.lesson-phrases{color:#bfcff3}.lesson-action{margin-top:24px}.lesson-action .btn{min-height:52px;font-size:var(--text-control);white-space:normal}
.lesson-action p{font-size:var(--text-meta);color:var(--muted);margin-top:12px}
@media(max-width:480px){.opic-grid{grid-template-columns:1fr}.study-week{gap:4px}.study-dashboard{padding:18px}.lesson-page{margin-top:0}.lesson-action .btn{width:100%}}


/* New OPIc entries reuse the existing lesson row; legacy lessons stay untouched. */
.opic-card[hidden]{display:none}
.opic-grid{gap:8px}
.opic-heading h2{font-family:var(--font-display);font-size:1.4rem;letter-spacing:-.01em}
.opic-pick strong{font-family:var(--font-display)}
.lesson-back+.opic-hub{margin-top:0}