:root {
  color-scheme: light;
  --bg: #f7f3fb;
  --surface: #fffaff;
  --surface-strong: #ffffff;
  --text: #120d18;
  --muted: #6e6477;
  --line: #ded2e8;
  --accent: #9b4dff;
  --accent-strong: #4a167e;
  --brand-hot: #e653c8;
  --brand-ink: #07040b;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 80px rgba(52, 28, 82, 0.18);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    linear-gradient(135deg, rgba(155, 77, 255, 0.08) 0 1px, transparent 1px 18px),
    radial-gradient(circle at 16% 8%, rgba(230, 83, 200, 0.18), transparent 24rem),
    linear-gradient(145deg, var(--bg), #efe7f8 48%, var(--surface));
}

[data-theme="night"] {
  color-scheme: dark;
  --bg: #07040b;
  --surface: #100918;
  --surface-strong: #181024;
  --text: #fbf7ff;
  --muted: #b9aeca;
  --line: #342143;
  --accent: #b66cff;
  --accent-strong: #f0d7ff;
  --brand-hot: #ff63d8;
  --brand-ink: #030105;
  --ink: #07040b;
  --danger: #ff7aa7;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.56);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    linear-gradient(135deg, rgba(182, 108, 255, 0.08) 0 1px, transparent 1px 18px),
    radial-gradient(circle at 16% 9%, rgba(255, 99, 216, 0.22), transparent 22rem),
    radial-gradient(circle at 84% 22%, rgba(96, 53, 255, 0.18), transparent 25rem),
    linear-gradient(145deg, #030105, var(--bg) 50%, #13071f);
}

[data-theme="night"][data-design="atelier"] {
  color-scheme: dark;
  --bg: #07040b;
  --surface: #100918;
  --surface-strong: #181024;
  --text: #fbf7ff;
  --muted: #b9aeca;
  --line: #342143;
  --accent: #b66cff;
  --accent-strong: #f0d7ff;
  --brand-hot: #ff63d8;
  --brand-ink: #030105;
  --ink: #07040b;
  --danger: #ff7aa7;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.56);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    linear-gradient(135deg, rgba(182, 108, 255, 0.08) 0 1px, transparent 1px 18px),
    radial-gradient(circle at 16% 9%, rgba(255, 99, 216, 0.22), transparent 22rem),
    radial-gradient(circle at 84% 22%, rgba(96, 53, 255, 0.18), transparent 25rem),
    linear-gradient(145deg, #030105, var(--bg) 50%, #13071f);
}

[data-theme="day"][data-design="atelier"] {
  color-scheme: light;
  --bg: #f7f3fb;
  --surface: #fffaff;
  --surface-strong: #ffffff;
  --text: #120d18;
  --muted: #6e6477;
  --line: #ded2e8;
  --accent: #9b4dff;
  --accent-strong: #4a167e;
  --brand-hot: #e653c8;
  --brand-ink: #07040b;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 80px rgba(52, 28, 82, 0.18);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    linear-gradient(135deg, rgba(155, 77, 255, 0.08) 0 1px, transparent 1px 18px),
    radial-gradient(circle at 16% 8%, rgba(230, 83, 200, 0.18), transparent 24rem),
    linear-gradient(145deg, var(--bg), #efe7f8 48%, var(--surface));
}

[data-theme="night"][data-design="indigo-slate"] {
  color-scheme: dark;
  --bg: #0f172a;
  --surface: #151f35;
  --surface-strong: #1d2940;
  --text: #eef2ff;
  --muted: #b6c2d8;
  --line: #334155;
  --accent: #818cf8;
  --accent-strong: #c7d2fe;
  --brand-hot: #c4b5fd;
  --brand-ink: #0b1020;
  --ink: #0f172a;
  --danger: #fda4af;
  --shadow: 0 28px 86px rgba(4, 9, 20, 0.58);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 14% 12%, rgba(129, 140, 248, 0.24), transparent 24rem),
    radial-gradient(circle at 86% 18%, rgba(196, 181, 253, 0.18), transparent 22rem),
    linear-gradient(145deg, #070b15, var(--bg) 54%, #172036);
}

[data-theme="night"][data-design="emerald-mint"] {
  color-scheme: dark;
  --bg: #06251d;
  --surface: #0b3329;
  --surface-strong: #104536;
  --text: #eefdf7;
  --muted: #a7cfc0;
  --line: #1f5b49;
  --accent: #34d399;
  --accent-strong: #a7f3d0;
  --brand-hot: #6ee7b7;
  --brand-ink: #041511;
  --ink: #052018;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(0, 20, 13, 0.54);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 10%, rgba(52, 211, 153, 0.24), transparent 24rem),
    linear-gradient(145deg, #03110d, var(--bg) 50%, #0c372c);
}

[data-theme="night"][data-design="teal-cyan"] {
  color-scheme: dark;
  --bg: #062326;
  --surface: #0b3135;
  --surface-strong: #104249;
  --text: #eefcff;
  --muted: #a7ccd0;
  --line: #1f5961;
  --accent: #2dd4bf;
  --accent-strong: #99f6e4;
  --brand-hot: #67e8f9;
  --brand-ink: #031315;
  --ink: #052124;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(0, 19, 22, 0.54);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 8%, rgba(45, 212, 191, 0.22), transparent 24rem),
    radial-gradient(circle at 84% 22%, rgba(103, 232, 249, 0.18), transparent 22rem),
    linear-gradient(145deg, #021012, var(--bg) 50%, #0c3338);
}

[data-theme="night"][data-design="rose-warm"] {
  color-scheme: dark;
  --bg: #2a1118;
  --surface: #3a1721;
  --surface-strong: #4a1f2d;
  --text: #fff5f7;
  --muted: #dfb5bf;
  --line: #6a3040;
  --accent: #fb7185;
  --accent-strong: #fecdd3;
  --brand-hot: #fdba74;
  --brand-ink: #16070b;
  --ink: #2a1118;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(22, 7, 11, 0.58);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 9%, rgba(251, 113, 133, 0.26), transparent 23rem),
    radial-gradient(circle at 84% 18%, rgba(253, 186, 116, 0.16), transparent 21rem),
    linear-gradient(145deg, #15070b, var(--bg) 52%, #3b1822);
}

[data-theme="night"][data-design="graphite"] {
  color-scheme: dark;
  --bg: #111827;
  --surface: #182235;
  --surface-strong: #222d3f;
  --text: #f8fafc;
  --muted: #b7c2d0;
  --line: #374151;
  --accent: #94a3b8;
  --accent-strong: #e2e8f0;
  --brand-hot: #cbd5e1;
  --brand-ink: #0b1019;
  --ink: #111827;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(0, 0, 0, 0.5);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 9%, rgba(148, 163, 184, 0.17), transparent 22rem),
    linear-gradient(145deg, #090d14, var(--bg) 50%, #1b2433);
}

[data-theme="night"][data-design="sky-navy"] {
  color-scheme: dark;
  --bg: #082f49;
  --surface: #0c3c5d;
  --surface-strong: #124c73;
  --text: #f0f9ff;
  --muted: #b1d4e6;
  --line: #1f6085;
  --accent: #38bdf8;
  --accent-strong: #bae6fd;
  --brand-hot: #7dd3fc;
  --brand-ink: #031622;
  --ink: #082f49;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(3, 22, 34, 0.54);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 8%, rgba(56, 189, 248, 0.23), transparent 24rem),
    linear-gradient(145deg, #031622, var(--bg) 52%, #0f4163);
}

[data-theme="night"][data-design="forest"] {
  color-scheme: dark;
  --bg: #102517;
  --surface: #173521;
  --surface-strong: #1e462b;
  --text: #f4fff5;
  --muted: #b9d2be;
  --line: #2c6140;
  --accent: #86efac;
  --accent-strong: #dcfce7;
  --brand-hot: #bef264;
  --brand-ink: #071209;
  --ink: #102517;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(4, 14, 7, 0.54);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 8%, rgba(134, 239, 172, 0.2), transparent 24rem),
    radial-gradient(circle at 82% 20%, rgba(190, 242, 100, 0.14), transparent 22rem),
    linear-gradient(145deg, #061008, var(--bg) 52%, #17331f);
}

[data-theme="night"][data-design="copper-clay"] {
  color-scheme: dark;
  --bg: #29150c;
  --surface: #3b2013;
  --surface-strong: #4c2b19;
  --text: #fff7ed;
  --muted: #ddbda4;
  --line: #704329;
  --accent: #fdba74;
  --accent-strong: #fed7aa;
  --brand-hot: #fb923c;
  --brand-ink: #150904;
  --ink: #29150c;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(20, 8, 3, 0.58);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 8%, rgba(253, 186, 116, 0.22), transparent 24rem),
    radial-gradient(circle at 84% 20%, rgba(251, 146, 60, 0.16), transparent 22rem),
    linear-gradient(145deg, #130803, var(--bg) 52%, #3a1f12);
}

[data-theme="day"][data-design="indigo-slate"] {
  color-scheme: light;
  --bg: #eef2ff;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #263044;
  --muted: #667085;
  --line: #d8def0;
  --accent: #4f46e5;
  --accent-strong: #3730a3;
  --brand-hot: #7c3aed;
  --brand-ink: #f8fafc;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 80px rgba(79, 70, 229, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 14% 10%, rgba(79, 70, 229, 0.16), transparent 24rem),
    linear-gradient(145deg, #f8fafc, var(--bg) 52%, #e0e7ff);
}

[data-theme="day"][data-design="emerald-mint"] {
  color-scheme: light;
  --bg: #edf8f2;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #20362f;
  --muted: #64776f;
  --line: #cfe9dc;
  --accent: #047857;
  --accent-strong: #065f46;
  --brand-hot: #10b981;
  --brand-ink: #f8fffb;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(4, 120, 87, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 10%, rgba(16, 185, 129, 0.18), transparent 24rem),
    linear-gradient(145deg, #f8fffb, var(--bg) 52%, #dcfce7);
}

[data-theme="day"][data-design="teal-cyan"] {
  color-scheme: light;
  --bg: #eaf7f7;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #203638;
  --muted: #60777a;
  --line: #c6e7e5;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --brand-hot: #0891b2;
  --brand-ink: #f7ffff;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(15, 118, 110, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 10%, rgba(8, 145, 178, 0.16), transparent 24rem),
    linear-gradient(145deg, #f7ffff, var(--bg) 52%, #ccfbf1);
}

[data-theme="day"][data-design="rose-warm"] {
  color-scheme: light;
  --bg: #f9eef0;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #3c252c;
  --muted: #7c6570;
  --line: #efd3d8;
  --accent: #be123c;
  --accent-strong: #9f1239;
  --brand-hot: #f97316;
  --brand-ink: #fffbf7;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(190, 18, 60, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 10%, rgba(249, 115, 22, 0.14), transparent 22rem),
    linear-gradient(145deg, #fffbf7, var(--bg) 52%, #ffe4e6);
}

[data-theme="day"][data-design="graphite"] {
  color-scheme: light;
  --bg: #eef1f5;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #252b35;
  --muted: #697386;
  --line: #d7dde6;
  --accent: #374151;
  --accent-strong: #111827;
  --brand-hot: #64748b;
  --brand-ink: #f9fafb;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(55, 65, 81, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 10%, rgba(100, 116, 139, 0.15), transparent 22rem),
    linear-gradient(145deg, #f9fafb, var(--bg) 52%, #e2e8f0);
}

[data-theme="day"][data-design="sky-navy"] {
  color-scheme: light;
  --bg: #eaf5fb;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #203342;
  --muted: #607586;
  --line: #c9e0ed;
  --accent: #0369a1;
  --accent-strong: #075985;
  --brand-hot: #0284c7;
  --brand-ink: #f8fdff;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(3, 105, 161, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 10%, rgba(2, 132, 199, 0.16), transparent 24rem),
    linear-gradient(145deg, #f8fdff, var(--bg) 52%, #e0f2fe);
}

[data-theme="day"][data-design="forest"] {
  color-scheme: light;
  --bg: #eef5e7;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #25351f;
  --muted: #68795f;
  --line: #d1e6c4;
  --accent: #166534;
  --accent-strong: #14532d;
  --brand-hot: #65a30d;
  --brand-ink: #fbfff8;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(22, 101, 52, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 10%, rgba(101, 163, 13, 0.14), transparent 24rem),
    linear-gradient(145deg, #fbfff8, var(--bg) 52%, #dcfce7);
}

[data-theme="day"][data-design="copper-clay"] {
  color-scheme: light;
  --bg: #f8eee7;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #3b2a20;
  --muted: #7a6658;
  --line: #ead0bd;
  --accent: #a9471b;
  --accent-strong: #7c2d12;
  --brand-hot: #c2410c;
  --brand-ink: #fffbf7;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(169, 71, 27, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 18% 10%, rgba(194, 65, 12, 0.14), transparent 24rem),
    linear-gradient(145deg, #fffbf7, var(--bg) 52%, #fed7aa);
}

[data-theme="night"][data-design="lavender-fog"] {
  color-scheme: dark;
  --bg: #151225;
  --surface: #1e1a2e;
  --surface-strong: #29233d;
  --text: #f8f7ff;
  --muted: #c5bdd8;
  --line: #3f355a;
  --accent: #a78bfa;
  --accent-strong: #ddd6fe;
  --brand-hot: #c4b5fd;
  --brand-ink: #0b0914;
  --ink: #151225;
  --danger: #fda4af;
  --shadow: 0 28px 84px rgba(11, 9, 20, 0.54);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 8%, rgba(167, 139, 250, 0.22), transparent 24rem),
    linear-gradient(145deg, #0b0914, var(--bg) 52%, #211b34);
}

[data-theme="day"][data-design="lavender-fog"] {
  color-scheme: light;
  --bg: #f1eff8;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --text: #302c3d;
  --muted: #716a82;
  --line: #ddd7ee;
  --accent: #7c3aed;
  --accent-strong: #5b21b6;
  --brand-hot: #8b5cf6;
  --brand-ink: #fbfaff;
  --ink: #ffffff;
  --danger: #be315d;
  --shadow: 0 24px 78px rgba(124, 58, 237, 0.16);
  --logo-tone: linear-gradient(135deg, var(--accent), var(--brand-hot));
  --texture:
    radial-gradient(circle at 16% 10%, rgba(139, 92, 246, 0.14), transparent 24rem),
    linear-gradient(145deg, #fbfaff, var(--bg) 52%, #ede9fe);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--texture);
  color: var(--text);
  font-family: "Avenir Next", Avenir, ui-sans-serif, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 100% 4px;
  opacity: 0.45;
}

button,
input {
  font: inherit;
}

button {
  min-width: 0;
}

.login-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 22px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--brand-ink) 88%, transparent), color-mix(in srgb, var(--brand-ink) 40%, transparent)),
    var(--texture);
}

.login-screen.is-hidden {
  display: none;
}

.login-panel {
  width: min(100%, 345px);
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 8px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--surface) 90%, transparent), color-mix(in srgb, var(--surface-strong) 76%, transparent)),
    color-mix(in srgb, var(--brand-ink) 8%, transparent);
  box-shadow: var(--shadow);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.login-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--brand-hot));
}

.login-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: color-mix(in srgb, var(--text) 86%, var(--accent));
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
}

.login-logo {
  display: inline-block;
  flex: 0 0 auto;
  width: 42px;
  height: 36px;
  background: var(--logo-tone);
  -webkit-mask: url("/static/ki-atelier-logo-transparent.png") left center / contain no-repeat;
  mask: url("/static/ki-atelier-logo-transparent.png") left center / contain no-repeat;
  filter: drop-shadow(0 0 12px color-mix(in srgb, var(--accent) 42%, transparent));
  transition: background 180ms ease, filter 180ms ease;
}

.login-copy {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.eyebrow,
.message-kicker {
  color: var(--brand-hot);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-copy h1,
.brand strong,
h1 {
  font-family: Optima, "Avenir Next", serif;
  letter-spacing: 0;
}

.login-copy h1 {
  font-size: clamp(43px, 10vw, 69px);
  line-height: 0.9;
  margin: 8px 0 0;
}

.login-form {
  display: grid;
  gap: 11px;
  margin-top: 22px;
}

.login-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.login-form input {
  min-height: 38px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-strong);
  color: var(--text);
  padding: 0 14px;
  outline: none;
}

.login-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.login-form button,
.send-button {
  min-height: 41px;
  border: 0;
  border-radius: 7px;
  padding: 0 18px;
  background: linear-gradient(135deg, var(--accent), var(--brand-hot));
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
}

[data-theme="day"] .login-form button,
[data-theme="day"] .send-button {
  color: var(--surface-strong);
}

.login-error {
  min-height: 22px;
  color: var(--danger);
  margin: 0;
}

.shell {
  height: 100vh;
  height: 100svh;
  display: grid;
  grid-template-rows: 1fr;
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 22px;
  overflow: hidden;
  position: relative;
}

.topbar {
  position: absolute;
  top: 16px;
  right: 22px;
  z-index: 25;
  display: flex;
  justify-content: flex-end;
  gap: 18px;
  align-items: center;
  padding: 0;
}

.brand {
  color: inherit;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
}

.corner-brand {
  position: fixed;
  bottom: 12px;
  left: 14px;
  z-index: 10;
  gap: 7px;
  opacity: 0.62;
  transition: opacity 160ms ease;
}

.corner-brand:hover,
.corner-brand:focus-visible {
  opacity: 1;
}

.brand-mark {
  display: inline-block;
  flex: 0 0 auto;
  width: 30px;
  height: 25px;
  background: var(--logo-tone);
  -webkit-mask: url("/static/ki-atelier-logo-transparent.png") left center / contain no-repeat;
  mask: url("/static/ki-atelier-logo-transparent.png") left center / contain no-repeat;
  filter: drop-shadow(0 0 9px color-mix(in srgb, var(--accent) 28%, transparent));
  transition: background 180ms ease, filter 180ms ease;
}

.brand strong {
  display: block;
  color: color-mix(in srgb, var(--text) 88%, var(--accent));
  font-family: "Avenir Next", Avenir, ui-sans-serif, sans-serif;
  font-size: 12px;
  font-weight: 760;
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-top: 4px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-menu {
  position: relative;
}

.avatar-button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0;
  background: linear-gradient(135deg, var(--accent), var(--brand-hot));
  color: var(--ink);
  cursor: pointer;
  font-size: 14px;
  font-weight: 850;
  line-height: 1;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--brand-hot) 22%, transparent);
}

[data-theme="day"] .avatar-button {
  color: var(--surface-strong);
}

.avatar-button:hover,
.avatar-button:focus-visible,
.avatar-button[aria-expanded="true"] {
  border-color: color-mix(in srgb, var(--brand-hot) 55%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-hot) 20%, transparent);
}

.user-menu-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 30;
  width: min(88vw, 330px);
  border: 1px solid color-mix(in srgb, var(--line) 85%, transparent);
  border-radius: 8px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--surface-strong) 86%, transparent)),
    var(--surface);
  box-shadow: var(--shadow);
  padding: 8px;
}

.is-hidden {
  display: none !important;
}

.menu-row {
  width: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 0 10px;
  text-align: left;
  font-weight: 760;
}

.menu-row.compact {
  min-height: 36px;
  color: var(--muted);
  font-size: 13px;
}

.menu-row:hover,
.menu-row:focus-visible,
.menu-row[aria-expanded="true"] {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface-strong) 76%, transparent);
}

.chevron-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  transition: transform 160ms ease;
}

.menu-row[aria-expanded="true"] .chevron-icon {
  transform: rotate(180deg);
}

.menu-section {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 4px 0;
  padding: 8px 0;
}

.appearance-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  padding: 4px;
}

.appearance-choice {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 760;
}

.appearance-choice:hover,
.appearance-choice:focus-visible,
.appearance-choice.is-active {
  color: var(--ink);
  background: linear-gradient(135deg, var(--accent), var(--brand-hot));
}

[data-theme="day"] .appearance-choice.is-active {
  color: var(--surface-strong);
}

.choice-icon {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.theme-choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  padding: 0 2px 4px;
}

.theme-choice {
  min-height: 58px;
  display: grid;
  gap: 7px;
  justify-items: start;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  color: var(--text);
  cursor: pointer;
  padding: 9px;
  text-align: left;
  font-size: 12px;
  font-weight: 760;
}

.theme-choice:hover,
.theme-choice:focus-visible,
.theme-choice.is-active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 18%, transparent);
}

.theme-swatches {
  display: flex;
  gap: 4px;
}

.theme-swatches i {
  display: block;
  width: 16px;
  height: 16px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: 999px;
}

.theme-swatches i:nth-child(1) {
  background: var(--swatch-a);
}

.theme-swatches i:nth-child(2) {
  background: var(--swatch-b);
}

.theme-swatches i:nth-child(3) {
  background: var(--swatch-c);
}

.model-panel {
  display: grid;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  padding: 10px;
}

.model-panel strong {
  color: var(--text);
  font-size: 13px;
}

.model-panel span {
  color: var(--brand-hot);
  font-size: 12px;
  font-weight: 800;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
}

.workspace-intro {
  max-width: 100%;
  padding: 0 58px 0 2px;
}

.workspace-intro h1 {
  font-size: clamp(28px, 4vw, 46px);
  margin-top: 6px;
}

.workspace-intro p {
  max-width: none;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.35;
}

@media (min-width: 860px) {
  .workspace-intro p {
    white-space: nowrap;
  }
}

.conversation {
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.message {
  max-width: 760px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 18px;
}

.user-message {
  margin-left: auto;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(32px, 5vw, 64px);
  line-height: 0.96;
  margin-top: 10px;
  max-width: 620px;
}

h2 {
  font-size: 24px;
  margin: 8px 0 12px;
}

p {
  color: var(--muted);
  line-height: 1.55;
  margin-top: 12px;
}

.preview {
  width: min(100%, 420px);
  max-height: 320px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.rank-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.rank {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: color-mix(in srgb, var(--surface) 76%, transparent);
}

.rank-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.rank-name,
.confidence {
  font-weight: 760;
}

.confidence {
  color: var(--accent-strong);
}

.bar {
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: color-mix(in srgb, var(--line) 70%, transparent);
  margin-top: 10px;
}

.bar span {
  display: block;
  height: 100%;
  width: var(--score);
  background: linear-gradient(90deg, var(--accent), var(--brand-hot));
}

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  background: var(--surface-strong);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.11);
}

.view-upload-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  min-width: 0;
}

.file-drop {
  min-height: 60px;
  display: grid;
  align-content: center;
  gap: 7px;
  min-width: 0;
  padding: 9px 10px;
  border: 1px dashed var(--line);
  border-radius: 7px;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.file-drop:hover,
.file-drop:focus-within,
.file-drop.is-dragging {
  border-color: var(--brand-hot);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: color-mix(in srgb, var(--text) 86%, var(--accent));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--brand-hot) 25%, transparent);
}

.file-drop.is-disabled {
  cursor: wait;
  opacity: 0.72;
}

.file-drop input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
}

.view-title {
  display: block;
  color: var(--text);
  font-size: 12px;
  font-weight: 820;
  line-height: 1.05;
}

.file-label {
  display: block;
  max-width: 100%;
  overflow: hidden;
  padding-top: 6px;
  border-top: 1px solid color-mix(in srgb, var(--line) 74%, transparent);
  color: var(--muted);
  font-size: 11px;
  font-weight: 720;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.send-button:disabled,
.login-form button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.notice {
  border-left: 3px solid var(--brand-hot);
  padding-left: 12px;
  margin-top: 12px;
}

.upload-summary {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.upload-summary li {
  display: grid;
  gap: 2px;
}

.upload-summary strong {
  color: var(--text);
  font-size: 12px;
}

.upload-summary span {
  color: var(--muted);
  font-size: 12px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.preview-grid figure {
  margin: 0;
  min-width: 0;
}

.preview-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.preview-grid figcaption {
  overflow: hidden;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.view-evidence {
  display: grid;
  gap: 7px;
  margin-top: 14px;
}

.view-evidence-row {
  display: grid;
  grid-template-columns: minmax(72px, 0.9fr) minmax(0, 1.3fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
}

.view-evidence-row span,
.view-evidence-row em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.view-evidence-row strong {
  overflow: hidden;
  color: var(--text);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.feedback-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
}

.feedback-controls button {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 10px;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 760;
}

.feedback-controls button:hover,
.feedback-controls button:focus-visible {
  border-color: var(--brand-hot);
  color: var(--accent-strong);
}

.feedback-controls button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.feedback-controls.is-saved button {
  cursor: default;
}

.feedback-status {
  min-width: min(100%, 180px);
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
}

@media (max-width: 720px) {
  .shell,
  .login-screen {
    padding: 14px;
  }

  .topbar,
  .composer,
  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar,
  .toolbar {
    display: flex;
  }

  .user-menu {
    align-self: flex-end;
  }

  .user-menu-panel {
    right: 0;
  }

  .conversation {
    min-height: 0;
    padding: 14px;
  }

  .view-upload-grid,
  .preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .file-drop {
    min-height: 54px;
  }

  .view-evidence-row {
    grid-template-columns: 1fr auto;
  }

  .view-evidence-row strong {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .workspace-intro h1 {
    font-size: clamp(26px, 9vw, 38px);
  }

  .login-panel {
    padding: 24px;
  }
}