/* patina — editorial dark: near-black canvas, white type, single restrained accent (no rainbow/aurora slop) */
:root {
  /* Surfaces — neutral near-black (Lovable's warm-light, inverted to dark) */
  --bg: #0a0a0b;            /* page canvas */
  --bg-cream: #1b1b1f;      /* elevated surface (cards / badges / bar+foot) */
  --bg-side: #0e0e10;       /* sidebar */
  --bg-elev: #141417;       /* composer / prompt / editor panel */
  --bg-hover: rgba(255, 255, 255, 0.05);
  --bg-hover-2: rgba(255, 255, 255, 0.08);

  /* Text — white on near-black */
  --text: #fafafa;
  --text-dim: #a1a1aa;
  --text-faint: #7c7c84;

  /* Borders — neutral hairlines */
  --border: #27272a;
  --border-strong: #3f3f46;

  /* Patina semantic accents (kept for diff / signals) */
  --accent: #2dd4bf;        /* patina teal — single primary accent */
  --accent-soft: #5eead4;
  --accent-press: #14b8a6;
  --on-accent: #04181a;     /* dark text on a teal fill */
  --copper: #d9772f;        /* AI "packaging" / the "before" */
  --gold: #ffe6a8;          /* preserved-meaning core */

  /* High-emphasis pill (nav CTA): white on near-black */
  --dark: #fafafa;
  --on-dark: #0a0a0b;

  --maxw: 768px;
  --page: 1120px;
  --font: "Pretendard Variable", Pretendard, Inter, ui-sans-serif, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Noto Sans SC", "Noto Sans JP", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --inset: rgba(255, 255, 255, 0.08) 0 0.5px 0 0 inset, rgba(0, 0, 0, 0.35) 0 0 0 0.5px inset, rgba(0, 0, 0, 0.25) 0 1px 2px 0;
  --focus-shadow: rgba(0, 0, 0, 0.55) 0 4px 16px;

  /* Restrained single-accent glow — editorial, no rainbow (StyleSeed: one accent, rest grayscale) */
  --aurora:
    radial-gradient(60% 48% at 50% -10%, rgba(45, 212, 191, 0.07), transparent 72%),
    radial-gradient(90% 60% at 50% 122%, rgba(255, 255, 255, 0.02), transparent 70%);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
html { height: 100%; }
body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

/* ───────── view switching ───────── */
.app[data-view="landing"] .chat { display: none; }
.app[data-view="chat"] .landing { display: none; }
.app[data-view="chat"] { height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
.app[data-view="chat"] .nav { flex: 0 0 auto; }

/* ───────── top nav ───────── */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 14px clamp(28px, 8vw, 120px);
  background: transparent;
}
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: -.4px; text-decoration: none; }
.nav__icon { display: block; width: 26px; height: 26px; }
.nav__links { display: flex; align-items: center; gap: 20px; margin-left: 14px; }
.nav__links a { font-size: 15px; color: var(--text-dim); text-decoration: none; }
.nav__links a:hover { color: var(--text); }
.nav__end { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.nav__byok { flex-basis: 100%; display: flex; align-items: center; justify-content: flex-end; gap: 10px; flex-wrap: wrap; margin-top: 2px; }
.nav__byok[hidden] { display: none; }

.ctl { display: flex; align-items: center; gap: 6px; }
.ctl[hidden] { display: none; }
.ctl__label { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .04em; }
.ctl__select, .ctl__input {
  background: var(--bg-elev); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 9px; font-size: 13px; font-family: inherit; outline: none;
}
.ctl__select:focus, .ctl__input:focus { border-color: var(--border-strong); box-shadow: var(--focus-shadow); }
.ctl__input { width: 180px; }
.ctl--key .ctl__input::placeholder { color: var(--text-faint); }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 9999px; font-size: 14px; font-family: inherit;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
}
.btn--gh { background: #ffffff; color: #0d1117; border-color: #ffffff; box-shadow: var(--inset); }
.btn--gh:hover { opacity: .88; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }

/* ───────── landing ───────── */
.landing { display: block; }

.hero { position: relative; min-height: calc(100dvh - 63px); display: flex; flex-direction: column; justify-content: center; padding: 24px 24px 48px; overflow: hidden; }
.hero__sky {
  position: absolute; inset: -10% -10% 0; z-index: 0;
  background: var(--aurora);
  pointer-events: none;
}
/* fine dot-grid texture — strongest behind the title, faded out toward the composer */
.hero__sky::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(232, 238, 247, 0.05) 1px, transparent 1.5px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 16%, #000 32%, transparent 78%);
  mask-image: radial-gradient(120% 90% at 50% 16%, #000 32%, transparent 78%);
}
.hero__inner { position: relative; z-index: 1; width: 100%; max-width: 800px; margin: 0 auto; text-align: center; }
.hero__title { font-size: clamp(40px, 6.4vw, 64px); font-weight: 600; line-height: 1.05; letter-spacing: -1.6px; margin: 0 0 14px; word-break: keep-all; text-wrap: balance; }
.hero__title .grad { color: var(--accent); white-space: nowrap; }
.hero__sub { font-size: 18px; color: var(--text-dim); margin: 0 auto 44px; max-width: 720px; text-wrap: balance; word-break: keep-all; }

/* prompt card (the Lovable hero input) */
.prompt {
  max-width: 768px; margin: 0 auto;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 28px; padding: 18px 20px 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
  text-align: left;
}
.prompt:focus-within { border-color: var(--border-strong); box-shadow: var(--focus-shadow); }
.prompt__input {
  width: 100%; resize: none; border: 0; outline: 0; background: transparent;
  color: var(--text); font-family: inherit; font-size: 18px; line-height: 1.5;
  max-height: 240px; min-height: 70px; padding: 4px 6px;
}
.prompt__input::placeholder { color: var(--text-faint); }
.prompt__bar { display: flex; align-items: center; margin-top: 10px; }
.prompt__send {
  margin-left: auto; flex: 0 0 auto; width: 38px; height: 38px; border-radius: 9999px;
  border: 0; background: var(--accent); color: var(--on-accent);
  display: grid; place-items: center; cursor: pointer; box-shadow: var(--inset);
  transition: background .15s, opacity .15s;
}
.prompt__send:hover:not(:disabled) { background: var(--accent-press); }
.prompt__send:disabled { background: var(--bg-cream); color: var(--text-faint); cursor: not-allowed; box-shadow: none; }

.suggest { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 20px auto 0; max-width: 768px; }
.suggest__pill {
  font-size: 13px; padding: 8px 14px; border-radius: 9999px;
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text-dim);
  cursor: pointer; font-family: inherit; transition: border-color .15s, box-shadow .15s;
}
.suggest__pill:hover { border-color: var(--border-strong); box-shadow: var(--focus-shadow); color: var(--text); }

/* section scaffolding */
.sec__head { text-align: left; margin-bottom: 40px; }
.eyebrow { display: flex; align-items: center; gap: 16px; margin: 0 0 18px; }
.eyebrow span { flex: 0 0 auto; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--text-dim); background: var(--bg-cream); border: 1px solid var(--border-strong); border-radius: 8px; padding: 7px 12px; }
.eyebrow::after { content: ""; flex: 1 1 auto; height: 1px; background: var(--border); }
.sec__title { font-size: clamp(30px, 4.4vw, 44px); font-weight: 600; letter-spacing: -1.2px; margin: 0; }
.sec__lede { margin: 14px 0 0; color: var(--text-dim); font-size: 16px; max-width: 640px; line-height: 1.6; text-wrap: balance; word-break: keep-all; }

.how, .examples, .bench, .cta { max-width: var(--page); margin: 0 auto; padding: 104px 24px; }
.how__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.how__preview {
  background: var(--bg-cream); border: 1px solid var(--border); border-radius: 16px;
  padding: 24px; display: flex; flex-direction: column; gap: 12px; font-size: 14px;
}
.hp-line { padding: 12px 14px; border-radius: 12px; background: var(--bg-elev); border: 1px solid var(--border); line-height: 1.5; }
.hp-before { border-left: 2px solid var(--copper); }
.hp-after { border-left: 2px solid var(--accent); }
.hp-tag { display: inline-block; font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); margin-right: 8px; font-family: var(--mono); }
.hp-arrow { text-align: center; font-size: 12px; color: var(--accent); font-family: var(--mono); }
.hp-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.hp-meta span { font-family: var(--mono); font-size: 11px; color: var(--gold); background: var(--bg-elev); border: 1px solid var(--border); border-radius: 9999px; padding: 3px 10px; }
.how__steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 26px; }
.how__steps h3 { font-size: 24px; font-weight: 600; margin: 0 0 4px; letter-spacing: -.4px; }
.how__steps p { margin: 0; color: var(--text-dim); }

/* examples — editor panel (Resend/Linear-style chrome) */
.editor { max-width: 920px; margin: 0 auto; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 28px rgba(0, 0, 0, .18); }
.editor__bar { display: flex; align-items: center; gap: 14px; padding: 11px 16px; border-bottom: 1px solid var(--border); background: var(--bg-cream); }
.editor__dots { display: inline-flex; gap: 7px; flex: 0 0 auto; }
.editor__dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--border-strong); }
.editor__tabs { display: flex; gap: 4px; flex: 1 1 auto; overflow-x: auto; scrollbar-width: none; }
.editor__tabs::-webkit-scrollbar { display: none; }
.editor__tab { font-family: inherit; font-size: 13px; color: var(--text-dim); background: transparent; border: 1px solid transparent; border-radius: 8px; padding: 6px 12px; cursor: pointer; white-space: nowrap; transition: background .15s, color .15s, border-color .15s; }
.editor__tab:hover { color: var(--text); background: var(--bg-hover); }
.editor__tab.is-active { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.editor__act { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.editor__state { font-family: var(--mono); font-size: 11px; color: var(--text-faint); white-space: nowrap; }
.editor__btn { font-family: var(--mono); font-size: 11px; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text-dim); cursor: pointer; padding: 5px 11px; transition: border-color .15s, color .15s; }
.editor__btn:hover { border-color: var(--border-strong); color: var(--text); }
.editor__btn.is-ok { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }

.editor__body { display: flex; align-items: flex-start; min-height: 128px; background-image: radial-gradient(circle at 1px 1px, rgba(232, 238, 247, 0.035) 1px, transparent 1.5px); background-size: 22px 22px; }
.editor__gutter { flex: 0 0 auto; display: flex; flex-direction: column; align-items: flex-end; padding: 18px 14px 18px 20px; border-right: 1px solid var(--border); font-family: var(--mono); font-size: 13px; line-height: 26px; color: var(--text-faint); user-select: none; }
.editor__code { flex: 1 1 auto; min-width: 0; padding: 18px 24px; }

.editor__foot { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--border); background: var(--bg-cream); }
.editor__cap { font-size: 12px; color: var(--text-faint); flex: 1 1 auto; }
.editor__footact { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }

/* examples — persistent before/after diff (both stay visible) */
.editor__seg { font-size: 15px; line-height: 26px; word-break: keep-all; }
.editor__seg--before { color: var(--text-dim); }
.editor__seg--before .dtok--rm { color: var(--copper); }
.editor__seg--after { color: var(--text); }
.editor__seg--after .dtok--add { color: var(--accent); }
.editor__arrow { font-family: var(--mono); font-size: 12px; line-height: 26px; color: var(--accent); opacity: .75; letter-spacing: .04em; }
.editor__gx { color: var(--accent); opacity: .55; }
.dtok { transition: color .35s ease; }

/* one-shot reveal flourish on the after block; the before block never moves */
.editor.is-reveal .editor__arrow,
.editor.is-reveal .editor__seg--after { animation: seg-in .6s ease both; }
@keyframes seg-in { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: none; } }

.xcard__replay, .xcard__try { font-family: inherit; font-size: 12px; border-radius: 9999px; padding: 6px 14px; cursor: pointer; transition: border-color .15s, background .15s, color .15s; }
.xcard__replay { background: transparent; border: 1px solid var(--border); color: var(--text-dim); }
.xcard__replay:hover { border-color: var(--border-strong); color: var(--text); }
.xcard__try { background: transparent; border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border)); color: var(--accent); }
.xcard__try:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }

@media (prefers-reduced-motion: reduce) {
  .editor.is-reveal .editor__arrow,
  .editor.is-reveal .editor__seg--after { animation: none; }
}

.bench__cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0 0 18px; }
.bstat { background: var(--bg-cream); border: 1px solid var(--border); border-radius: 16px; padding: 26px 20px; }
.bstat dt { font-size: 44px; font-weight: 600; letter-spacing: -1.5px; line-height: 1; }
.bstat dd { margin: 10px 0 2px; color: var(--text); font-size: 14px; font-weight: 500; }
.bstat small { display: block; color: var(--text-faint); font-size: 12px; font-family: var(--mono); }

.bench__signals { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.sigchip { font-family: var(--mono); font-size: 12px; color: var(--text-dim); background: var(--bg-elev); border: 1px solid var(--border); border-radius: 9999px; padding: 5px 12px; }

.bench__tablewrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 16px; background: var(--bg-cream); }
.bench__table { width: 100%; min-width: 440px; border-collapse: collapse; font-size: 14px; }
.bench__table th, .bench__table td { padding: 13px 18px; text-align: right; }
.bench__table th:first-child, .bench__table td:first-child { text-align: left; }
.bench__table thead th { color: var(--text-faint); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; border-bottom: 1px solid var(--border); }
.bench__table tbody td { font-family: var(--mono); color: var(--text-dim); border-top: 1px solid var(--border); }
.bench__table tbody tr:first-child td { border-top: 0; }
.bench__table tbody td:first-child { color: var(--text); font-weight: 600; font-family: var(--font); }

.bench__note { color: var(--text-faint); font-size: 13px; line-height: 1.65; margin: 20px 0 0; max-width: 740px; }
.bench__link { display: inline-block; margin-top: 14px; color: var(--accent); font-size: 14px; text-decoration: none; }
.bench__link:hover { text-decoration: underline; }

.cta__inner { position: relative; overflow: hidden; background: var(--bg-cream); border: 1px solid var(--border); border-radius: 24px; padding: 60px 24px; text-align: center; }
.cta__title { font-size: clamp(28px, 4vw, 40px); font-weight: 600; letter-spacing: -1px; margin: 0 0 12px; word-break: keep-all; text-wrap: balance; }
.cta__sub { color: var(--text-dim); margin: 0 auto 28px; max-width: 520px; text-wrap: balance; word-break: keep-all; }
.cta__btn { background: var(--accent); color: var(--on-accent); border: 0; border-radius: 9999px; padding: 14px 28px; font-size: 16px; font-weight: 600; font-family: inherit; cursor: pointer; box-shadow: var(--inset); transition: background .15s; }
.cta__btn:hover { background: var(--accent-press); }

.foot { max-width: var(--page); margin: 0 auto; padding: 40px 24px 56px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.foot__brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.foot__links { display: flex; gap: 18px; flex-wrap: wrap; }
.foot__links a { font-size: 14px; color: var(--text-dim); text-decoration: none; }
.foot__links a:hover { color: var(--text); }
.foot__tag { margin: 0 0 0 auto; color: var(--text-faint); font-size: 13px; }
/* ───────── chat view ───────── */
.chat { flex: 1; display: flex; min-height: 0; overflow: hidden; }
.sidebar {
  width: 260px; flex: 0 0 260px; background: var(--bg-side);
  display: flex; flex-direction: column; border-right: 1px solid var(--border);
  transition: margin-left .2s ease;
}
.sidebar__top { padding: 12px; }
.newchat {
  width: 100%; display: flex; align-items: center; gap: 10px;
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  border-radius: 9999px; padding: 11px 16px; font-size: 14px; font-weight: 500; font-family: inherit;
  cursor: pointer; box-shadow: var(--inset); transition: opacity .15s;
}
.newchat:hover { opacity: .85; }
.newchat__icon { font-size: 18px; line-height: 1; }
.sidebar__history { flex: 1; overflow-y: auto; padding: 4px 8px; }
.histitem {
  display: block; width: 100%; text-align: left; background: transparent; color: var(--text-dim);
  border: 0; border-radius: 10px; padding: 9px 10px; margin-bottom: 2px;
  font-size: 14px; cursor: pointer; font-family: inherit;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.histitem:hover { background: var(--bg-hover); color: var(--text); }
.histitem.active { background: var(--bg-hover-2); color: var(--text); }
.sidebar__foot { padding: 14px 16px; border-top: 1px solid var(--border); }
.brandmark { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; }
.brandmark__icon, .foot__brand img { display: block; flex: 0 0 auto; }
.sidebar__note { margin-top: 6px; font-size: 11px; color: var(--text-faint); line-height: 1.5; }

.chatmain { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.chatbar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; min-height: 50px; border-bottom: 1px solid var(--border); }
.chatbar__title { font-weight: 600; }
.iconbtn { background: transparent; border: 0; color: var(--text); font-size: 18px; cursor: pointer; padding: 6px 8px; border-radius: 8px; display: none; }
.iconbtn:hover { background: var(--bg-hover); }

.thread { flex: 1; overflow-y: auto; scroll-behavior: smooth; }
.thread__inner { max-width: var(--maxw); margin: 0 auto; padding: 24px 20px 8px; }
.thread__empty { min-height: 46vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; text-align: center; }
.thread__empty img { opacity: .92; }
.thread__empty-text { color: var(--text-dim); font-size: 15px; max-width: 420px; line-height: 1.55; text-wrap: balance; word-break: keep-all; margin: 0; }

.msg { display: flex; gap: 16px; padding: 14px 0; }
.msg__avatar { flex: 0 0 30px; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 13px; margin-top: 2px; }
.msg--user { justify-content: flex-end; }
.msg--user .msg__avatar { display: none; }
.msg--user .msg__body {
  background: var(--bg-cream); border: 1px solid var(--border);
  border-radius: 18px; padding: 10px 16px; max-width: 75%; white-space: pre-wrap; word-break: break-word;
}
.msg--patina .msg__avatar { background: var(--bg-cream); border: 1px solid var(--border); overflow: hidden; }
.msg__avatar img { width: 20px; height: 20px; display: block; }
.msg--patina .msg__body { flex: 1; min-width: 0; }
.msg__text { white-space: pre-wrap; word-break: break-word; }
.msg__text--flagged { opacity: .72; }
.msg__text.streaming::after { content: "▍"; color: var(--accent); margin-left: 1px; animation: blink 1s step-start infinite; }
@keyframes blink { 50% { opacity: 0; } }

.typing { display: inline-flex; gap: 4px; padding: 6px 0; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--text-faint); animation: bounce 1.2s infinite ease-in-out; }
.typing span:nth-child(2) { animation-delay: .15s; }
.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%,80%,100% { transform: translateY(0); opacity:.4 } 40% { transform: translateY(-5px); opacity:1 } }

.meta { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.badge { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-cream); border: 1px solid var(--border); border-radius: 9999px; padding: 4px 12px; font-size: 12px; color: var(--text-dim); font-family: var(--mono); }
.badge b { color: var(--gold); font-weight: 600; }
.badge--ok { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.badge--warn { border-color: #d9770655; }
.badge--warn b { color: #fbbf24; }
details.foldout { margin-top: 6px; }
details.foldout > summary { cursor: pointer; font-size: 13px; color: var(--text-dim); list-style: none; padding: 4px 0; user-select: none; }
details.foldout > summary::-webkit-details-marker { display: none; }
details.foldout > summary::before { content: "▸ "; }
details.foldout[open] > summary::before { content: "▾ "; }
.foldout__body { font-size: 13px; color: var(--text-dim); padding: 6px 0 2px; }
.foldout__body .diffrow { display: flex; gap: 8px; padding: 3px 0; }
.foldout__body .diffrow .k { flex: 0 0 64px; color: var(--text-faint); }
.signal-bar { display: flex; align-items: center; gap: 10px; font-family: var(--mono); }
.signal-bar .arrow { color: var(--accent); }
.signal-bar .sig-before { color: var(--copper); }
.signal-bar .sig-after { color: var(--accent); }

.error-note { color: #fca5a5; background: #ef444415; border: 1px solid #ef444433; border-radius: 10px; padding: 10px 12px; font-size: 14px; }

.composer-wrap { padding: 10px 20px 18px; }
.composer { max-width: var(--maxw); margin: 0 auto; display: flex; align-items: flex-end; gap: 8px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 26px; padding: 10px 10px 10px 20px; }
.composer:focus-within { border-color: var(--border-strong); box-shadow: var(--focus-shadow); }
.composer__input { flex: 1; resize: none; border: 0; outline: 0; background: transparent; color: var(--text); font-family: inherit; font-size: 16px; line-height: 1.5; max-height: 200px; padding: 8px 0; }
.composer__input::placeholder { color: var(--text-faint); }
.composer__send { flex: 0 0 auto; width: 38px; height: 38px; border-radius: 9999px; border: 0; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; cursor: pointer; box-shadow: var(--inset); transition: background .15s, opacity .15s; }
.composer__send:hover:not(:disabled) { background: var(--accent-press); }
.composer__send:disabled { background: var(--bg-cream); color: var(--text-faint); cursor: not-allowed; box-shadow: none; }
.composer__hint { max-width: var(--maxw); margin: 8px auto 0; text-align: center; font-size: 11.5px; color: var(--text-faint); }

/* ───────── responsive ───────── */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .ctl__label { display: none; }
  .how__grid { grid-template-columns: 1fr; gap: 28px; }
  .bench__cards { grid-template-columns: repeat(2, 1fr); }
  .hero__title { letter-spacing: -1px; }
  .how, .examples, .bench, .cta { padding: 72px 24px; }
}
@media (max-width: 820px) {
  .sidebar { position: absolute; z-index: 30; height: 100%; box-shadow: 4px 0 24px rgba(0,0,0,.12); }
  .chat:not(.sidebar-open) .sidebar { margin-left: -260px; }
  .iconbtn { display: inline-block; }
  .editor__dots { display: none; }
  .editor__state { display: none; }
  .editor__code { padding: 16px; }
  .editor__gutter { padding: 16px 10px; }
  .bench__cards { grid-template-columns: 1fr; }
}