/* styles.css — 立方 CUBE design tokens + components
   Light, restrained, pixel-precise. Neutral warm grays + one accent. */

:root {
  /* type */
  --font: "Noto Sans SC", "Space Grotesk", system-ui, sans-serif;
  --font-display: "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;

  /* accent — overridden by tweak */
  --accent: oklch(0.58 0.19 268);
  --accent-press: oklch(0.50 0.19 268);
  --accent-soft: oklch(0.58 0.19 268 / 0.10);
  --accent-fg: #ffffff;

  /* neutrals — warm-tinted light theme */
  --bg: oklch(0.985 0.002 95);
  --surface: oklch(1 0 0);
  --surface-2: oklch(0.975 0.003 95);
  --surface-hover: oklch(0.965 0.004 95);
  --border: oklch(0.92 0.004 95);
  --border-strong: oklch(0.86 0.005 95);
  --fg: oklch(0.22 0.006 90);
  --fg-dim: oklch(0.44 0.006 90);
  --fg-mute: oklch(0.62 0.006 90);

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 90 / 0.05), 0 1px 1px oklch(0.2 0.02 90 / 0.04);
  --shadow-md: 0 8px 24px -10px oklch(0.2 0.02 90 / 0.18), 0 2px 6px -2px oklch(0.2 0.02 90 / 0.08);
  --shadow-lg: 0 24px 60px -18px oklch(0.2 0.02 90 / 0.28);
  --maxw: 1240px;
}

.dark {
  --bg: oklch(0.165 0.006 270);
  --surface: oklch(0.205 0.007 270);
  --surface-2: oklch(0.235 0.008 270);
  --surface-hover: oklch(0.255 0.009 270);
  --border: oklch(0.30 0.01 270);
  --border-strong: oklch(0.38 0.012 270);
  --fg: oklch(0.96 0.004 270);
  --fg-dim: oklch(0.74 0.006 270);
  --fg-mute: oklch(0.56 0.008 270);
  --accent-soft: oklch(0.62 0.18 268 / 0.18);
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 10px 30px -12px oklch(0 0 0 / 0.55);
  --shadow-lg: 0 30px 70px -20px oklch(0 0 0 / 0.7);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background 0.3s ease, color 0.3s ease;
}
button { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent-soft); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.mono { font-family: "Space Mono", ui-monospace, monospace; }
.dim { color: var(--fg-dim); }
.mute { color: var(--fg-mute); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid transparent; border-radius: 999px;
  font-size: 14px; font-weight: 600; letter-spacing: 0.01em;
  padding: 11px 20px; transition: all 0.16s ease; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-press); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: var(--surface); color: var(--fg); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--surface-hover); border-color: var(--fg-mute); }
.btn-soft { background: var(--surface-2); color: var(--fg); }
.btn-soft:hover { background: var(--surface-hover); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 26px; font-size: 15px; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface); color: var(--fg-dim); transition: all 0.16s ease;
}
.icon-btn:hover { background: var(--surface-hover); color: var(--fg); border-color: var(--border-strong); }

/* ---------- header ---------- */
.hdr {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border);
}
.hdr-inner { display: flex; align-items: center; gap: 26px; height: 66px; }
.logo { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 19px; letter-spacing: -0.01em; white-space: nowrap; flex: none; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: var(--accent); color: var(--accent-fg);
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 15px;
  box-shadow: var(--shadow-sm);
}
.logo-sub { font-family: var(--font-display); font-weight: 700; }
.logo-cn { color: var(--fg-mute); font-size: 13px; font-weight: 500; margin-left: -3px; }
.nav { display: flex; align-items: center; gap: 2px; flex: none; }
.nav a {
  padding: 8px 13px; border-radius: 9px; font-size: 14px; font-weight: 500; color: var(--fg-dim);
  transition: all 0.14s ease; white-space: nowrap; flex: none;
}
.nav a:hover { color: var(--fg); background: var(--surface-2); }
.nav a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }

.search {
  display: flex; align-items: center; gap: 9px; flex: 1; min-width: 0; max-width: 340px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 11px; padding: 9px 14px; color: var(--fg-mute); transition: all 0.16s ease;
}

/* responsive header — drop crowded items before they wrap */
@media (max-width: 1080px) { .nav a.nav-cat { display: none; } }
@media (max-width: 760px) { .search { display: none; } .nav a.nav-sec { display: none; } }
@media (max-width: 600px) { .hdr-actions .hide-sm { display: none; } }
.search:focus-within { border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 4px var(--accent-soft); }
.search input { border: none; background: none; outline: none; flex: 1; font-size: 14px; color: var(--fg); font-family: inherit; }
.search input::placeholder { color: var(--fg-mute); }
.search kbd {
  font-family: "Space Mono", monospace; font-size: 11px; color: var(--fg-mute);
  border: 1px solid var(--border-strong); border-radius: 5px; padding: 1px 6px;
}

/* ---------- preview placeholder ---------- */
.prev {
  position: relative; width: 100%; overflow: hidden;
  background: var(--surface-2);
  --h1: 250; --h2: 250;
}
.prev.has-img { background: #fff; }
.prev.has-img .cover-img-shell {
  position: absolute; inset: 0; display: block; overflow: hidden; background: #fff;
}
.prev.has-img .cover-img-shell img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.prev.has-img .cover-img-placeholder {
  filter: saturate(0.82) contrast(0.98);
  transform: scale(1.01);
  opacity: 1;
  transition: opacity 0.18s ease;
}
.prev.has-img .cover-img-real {
  opacity: 0;
  transition: opacity 0.22s ease;
}
.prev.has-img .cover-img-shell.is-loaded .cover-img-real { opacity: 1; }
.prev.has-img .cover-img-shell.is-loaded:not(.is-fallback) .cover-img-placeholder { opacity: 0; }
.prev.has-img .cover-img-shell::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 18%, oklch(1 0 0 / 0.38) 42%, transparent 66%);
  transform: translateX(-100%);
  animation: cover-shimmer 1.15s ease-in-out infinite;
  pointer-events: none;
}
.prev.has-img .cover-img-shell.is-loaded::after { display: none; }
@keyframes cover-shimmer { to { transform: translateX(100%); } }
.prev.has-img::before,
.prev.has-img::after { display: none; }
.prev::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 120% at 18% 12%, oklch(0.7 0.13 var(--h1) / 0.55), transparent 55%),
    radial-gradient(130% 130% at 88% 92%, oklch(0.6 0.15 var(--h2) / 0.5), transparent 60%),
    linear-gradient(135deg, oklch(0.96 0.02 var(--h1)), oklch(0.9 0.03 var(--h2)));
}
.dark .prev::before { filter: brightness(0.8) saturate(1.15); }
.prev::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(oklch(0.3 0 0 / 0.07) 1px, transparent 1.4px);
  background-size: 13px 13px;
  mask-image: linear-gradient(transparent, black 60%);
}
.prev-tag {
  position: absolute; left: 12px; bottom: 12px; z-index: 2;
  font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: 0.02em;
  color: oklch(0.28 0.02 270); background: oklch(1 0 0 / 0.7);
  border: 1px solid oklch(1 0 0 / 0.5); border-radius: 6px; padding: 3px 8px;
  backdrop-filter: blur(4px); white-space: nowrap;
}
.dark .prev-tag { color: oklch(0.92 0 0); background: oklch(0.2 0 0 / 0.55); border-color: oklch(1 0 0 / 0.12); }

/* ---------- resource card ---------- */
.card {
  display: flex; flex-direction: column; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  transition: transform 0.18s cubic-bezier(.2,.7,.3,1), box-shadow 0.18s ease, border-color 0.18s ease;
  cursor: pointer; text-align: left;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card .prev { aspect-ratio: 4 / 3; }
.card:hover .prev::before { transform: scale(1.04); transition: transform 0.5s ease; }
.card-body { padding: 14px 15px 15px; display: flex; flex-direction: column; gap: 10px; }
.card-title { font-size: 15px; font-weight: 600; line-height: 1.35; letter-spacing: -0.01em; }
.card-row { display: flex; align-items: center; gap: 8px; }
.card-meta { display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--fg-mute); margin-top: 2px; }
.card-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* badges */
.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 600;
  padding: 3px 9px; border-radius: 7px; letter-spacing: 0.01em; white-space: nowrap;
}
.badge-sw { background: var(--surface-2); border: 1px solid var(--border); color: var(--fg-dim); }
.badge-sw .dot { width: 7px; height: 7px; border-radius: 999px; }
.badge-pro { background: oklch(0.78 0.16 85 / 0.18); color: oklch(0.5 0.13 75); }
.dark .badge-pro { color: oklch(0.85 0.15 88); }
.badge-free { background: var(--accent-soft); color: var(--accent); }
.chip {
  font-size: 12px; color: var(--fg-dim); background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 11px; white-space: nowrap;
  transition: all 0.14s ease;
}
button.chip { cursor: pointer; }
button.chip:hover { border-color: var(--fg-mute); color: var(--fg); }
.chip.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

/* avatar */
.av { border-radius: 999px; display: grid; place-items: center; color: #fff; font-weight: 600; flex: none; font-size: 13px; }

/* ---------- sections ---------- */
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 22px; gap: 16px; }
.sec-title { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; white-space: nowrap; }
.sec-sub { font-size: 14px; color: var(--fg-mute); margin-top: 5px; }
.eyebrow { font-family: "Space Mono", monospace; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }

.grid-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1080px) { .grid-cards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .grid-cards { grid-template-columns: repeat(2, 1fr); } }

/* ---------- product detail media ---------- */
.detail-preview img { background: #fff; }
.detail-image-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 28px;
}
.detail-image-stack img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.detail-files {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.detail-files-title {
  padding: 11px 15px;
  font-size: 13px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.detail-file-row {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  gap: 9px;
  align-items: center;
  padding: 10px 13px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
}
.detail-file-row:first-of-type { border-top: 0; }
.detail-file-row:hover { background: var(--surface-hover); }
.detail-file-icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
}
.detail-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}
.detail-file-meta {
  color: var(--fg-mute);
  font-family: "Space Mono", ui-monospace, monospace;
  white-space: nowrap;
}
.detail-page-embed {
  margin-top: 30px;
}
.detail-page-title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 12px;
}
.detail-page-embed iframe {
  display: block;
  width: 100%;
  min-height: 760px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #0d1117;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 980px) {
  .detail-grid { grid-template-columns: 1fr !important; }
  .detail-panel { position: static !important; }
}

/* ---------- footer ---------- */
.ftr { border-top: 1px solid var(--border); margin-top: 80px; padding: 52px 0 40px; color: var(--fg-dim); }
.ftr-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.ftr h4 { font-size: 13px; color: var(--fg); margin: 0 0 14px; letter-spacing: 0.02em; }
.ftr a { display: block; font-size: 13.5px; color: var(--fg-dim); padding: 5px 0; transition: color 0.14s; }
.ftr a:hover { color: var(--accent); }
.ftr-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border); font-size: 12.5px; color: var(--fg-mute); flex-wrap: wrap; gap: 12px; }

/* entrance — transform-only so a frozen/paused frame is still fully visible (never opacity:0 at rest) */
@keyframes rise { from { transform: translateY(16px); } to { transform: translateY(0); } }
.rise { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .rise { animation: rise 0.55s cubic-bezier(.2,.7,.3,1) both; }
}

/* ---------- inputs ---------- */
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; font-weight: 600; color: var(--fg-dim); }
.input {
  display: flex; align-items: center; gap: 10px; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 11px; padding: 12px 14px;
  color: var(--fg-mute); transition: all 0.16s ease;
}
.input:focus-within { border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 4px var(--accent-soft); }
.input input { border: none; background: none; outline: none; flex: 1; font-size: 14.5px; color: var(--fg); font-family: inherit; }
.input input::placeholder { color: var(--fg-mute); }
.input .suffix { font-size: 13px; font-weight: 600; color: var(--accent); white-space: nowrap; cursor: pointer; }

/* ---------- login ---------- */
.auth-wrap { display: grid; grid-template-columns: 1.05fr 1fr; min-height: calc(100vh - 66px); }
.auth-brand {
  position: relative; overflow: hidden; padding: 56px 60px; display: flex; flex-direction: column; justify-content: space-between;
  background: linear-gradient(150deg, var(--accent), color-mix(in oklch, var(--accent) 60%, #111));
  color: #fff;
}
.auth-brand::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(oklch(1 0 0 / 0.14) 1px, transparent 1.6px);
  background-size: 22px 22px; mask-image: radial-gradient(120% 80% at 80% 20%, black, transparent 75%);
}
.auth-form-side { display: flex; align-items: center; justify-content: center; padding: 40px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-tabs { display: flex; gap: 4px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 4px; margin-bottom: 24px; }
.auth-tabs button { flex: 1; border: none; background: none; padding: 9px; border-radius: 9px; font-size: 14.5px; font-weight: 600; color: var(--fg-mute); transition: all 0.16s; }
.auth-tabs button.on { background: var(--surface); color: var(--fg); box-shadow: var(--shadow-sm); }
.auth-divider { display: flex; align-items: center; gap: 12px; color: var(--fg-mute); font-size: 12.5px; margin: 22px 0; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.social-row { display: flex; gap: 12px; justify-content: center; }
.social-btn { display: flex; flex-direction: column; align-items: center; gap: 6px; border: none; background: none; color: var(--fg-mute); font-size: 12px; }
.social-dot { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; border: 1px solid var(--border); background: var(--surface); color: #fff; font-weight: 700; transition: all 0.16s; }
.social-btn:hover .social-dot { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ---------- profile ---------- */
.pf-banner { height: 200px; border-radius: 0 0 var(--radius-lg) var(--radius-lg); position: relative; overflow: hidden; }
.pf-banner::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(oklch(1 0 0 / 0.16) 1px, transparent 1.6px); background-size: 20px 20px; mask-image: linear-gradient(120deg, black, transparent 70%); }
.pf-head { display: flex; align-items: flex-end; gap: 22px; margin-top: -52px; position: relative; z-index: 2; }
.pf-av { width: 112px; height: 112px; border-radius: 26px; border: 4px solid var(--bg); display: grid; place-items: center; color: #fff; font-size: 44px; font-weight: 700; flex: none; box-shadow: var(--shadow-md); }
.pf-tabs { display: flex; gap: 26px; border-bottom: 1px solid var(--border); margin: 28px 0 26px; }
.pf-tabs button { border: none; background: none; padding: 12px 2px; font-size: 15px; font-weight: 600; color: var(--fg-mute); position: relative; transition: color 0.16s; white-space: nowrap; }
.pf-tabs button.on { color: var(--fg); }
.pf-tabs button.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--accent); border-radius: 2px; }
.pf-stat { display: flex; gap: 30px; }
.pf-stat b { font-family: var(--font-display); font-size: 21px; font-weight: 700; letter-spacing: -0.02em; }
.pf-stat span { font-size: 12.5px; color: var(--fg-mute); }

@media (max-width: 900px) {
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-brand { display: none; }
}

/* ---------- creator landing ---------- */
.cr-hero { position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 64px 56px; color: #fff; margin-top: 28px;
  background: linear-gradient(135deg, var(--accent), color-mix(in oklch, var(--accent) 55%, #16161e)); }
.cr-hero::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(oklch(1 0 0 / 0.13) 1px, transparent 1.6px); background-size: 24px 24px;
  mask-image: radial-gradient(120% 90% at 85% 15%, black, transparent 72%); }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 24px; }
.feat-ic { width: 46px; height: 46px; border-radius: 13px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 16px; }
.step-row { display: flex; gap: 0; counter-reset: step; }
.step { flex: 1; position: relative; padding: 0 22px; }
.step-num { width: 38px; height: 38px; border-radius: 999px; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 16px; margin-bottom: 14px; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 19px; left: calc(50% + 30px); right: calc(-50% + 30px); height: 2px; background: var(--border-strong); }

/* ---------- dashboard ---------- */
.dash { display: grid; grid-template-columns: 230px 1fr; gap: 0; min-height: calc(100vh - 66px); }
.dash-side { border-right: 1px solid var(--border); padding: 26px 18px; background: var(--surface-2); }
.dash-nav { display: flex; flex-direction: column; gap: 3px; }
.dash-nav button { display: flex; align-items: center; gap: 11px; border: none; background: none; padding: 10px 13px; border-radius: 10px; font-size: 14px; font-weight: 500; color: var(--fg-dim); text-align: left; transition: all 0.14s; }
.dash-nav button:hover { background: var(--surface-hover); color: var(--fg); }
.dash-nav button.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.dash-main { padding: 32px 40px; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.kpi-val { font-family: var(--font-display); font-size: 29px; font-weight: 700; letter-spacing: -0.02em; margin: 6px 0 4px; }
.kpi-trend { font-size: 12.5px; font-weight: 600; }
.up { color: oklch(0.6 0.15 150); } .down { color: oklch(0.62 0.18 25); }
.tbl { width: 100%; border-collapse: collapse; }
.tbl th { text-align: left; font-size: 12.5px; font-weight: 600; color: var(--fg-mute); padding: 11px 14px; border-bottom: 1px solid var(--border); }
.tbl td { padding: 13px 14px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
.tbl tr:hover td { background: var(--surface-2); }
.bars { display: flex; align-items: flex-end; gap: 10px; height: 150px; }
.bar { width: 100%; background: var(--accent); border-radius: 6px 6px 0 0; min-height: 4px; transition: height 0.6s cubic-bezier(.2,.7,.3,1); opacity: 0.85; }
.bar:hover { opacity: 1; }

/* ---------- upload ---------- */
.up-grid { display: grid; grid-template-columns: 1fr 320px; gap: 36px; align-items: start; }
.dropzone { border: 2px dashed var(--border-strong); border-radius: var(--radius); padding: 44px 24px; text-align: center; color: var(--fg-mute); transition: all 0.18s; cursor: pointer; background: var(--surface-2); }
.dropzone:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.seg { display: flex; flex-wrap: wrap; gap: 8px; }
.seg button { border: 1px solid var(--border); background: var(--surface); border-radius: 10px; padding: 10px 15px; font-size: 13.5px; font-weight: 500; color: var(--fg-dim); transition: all 0.14s; white-space: nowrap; }
.seg button.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.textarea { width: 100%; border: 1px solid var(--border); background: var(--surface-2); border-radius: 11px; padding: 12px 14px; font-size: 14.5px; color: var(--fg); font-family: inherit; resize: vertical; outline: none; transition: all 0.16s; box-sizing: border-box; }
.textarea:focus { border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 4px var(--accent-soft); }

@media (max-width: 860px) {
  .dash { grid-template-columns: 1fr; }
  .dash-side { display: none; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
  .up-grid { grid-template-columns: 1fr; }
}

/* ---------- admin backend ---------- */
.adm { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; background: var(--bg); }
.adm-side { background: oklch(0.20 0.012 270); color: oklch(0.8 0.01 270); display: flex; flex-direction: column; padding: 0; position: sticky; top: 0; height: 100vh; }
.adm-brand { display: flex; align-items: center; gap: 11px; padding: 20px 22px; border-bottom: 1px solid oklch(0.28 0.012 270); }
.adm-brand .logo-mark { background: var(--accent); }
.adm-brand b { color: #fff; font-family: var(--font-display); font-size: 15px; white-space: nowrap; line-height: 1.2; }
.adm-brand span { font-size: 11px; color: oklch(0.6 0.01 270); display: block; margin-top: 2px; white-space: nowrap; }
.adm-nav { flex: 1; padding: 14px 12px; overflow-y: auto; }
.adm-nav .grp { font-size: 11px; letter-spacing: 0.08em; color: oklch(0.5 0.01 270); padding: 14px 12px 7px; text-transform: uppercase; }
.adm-nav button { display: flex; align-items: center; gap: 11px; width: 100%; border: none; background: none; padding: 9px 12px; border-radius: 9px; font-size: 13.5px; font-weight: 500; color: oklch(0.78 0.01 270); text-align: left; transition: all 0.14s; }
.adm-nav button:hover { background: oklch(0.26 0.012 270); color: #fff; }
.adm-nav button.on { background: var(--accent); color: #fff; font-weight: 600; }
.adm-nav button .cnt { margin-left: auto; font-size: 11px; background: oklch(0.65 0.2 25); color: #fff; border-radius: 999px; padding: 1px 7px; font-weight: 700; }
.adm-nav button.on .cnt { background: rgba(255,255,255,0.25); }
.adm-side-foot { padding: 14px 16px; border-top: 1px solid oklch(0.28 0.012 270); display: flex; align-items: center; gap: 10px; }

.adm-main { display: flex; flex-direction: column; min-width: 0; }
.adm-top { display: flex; align-items: center; justify-content: space-between; padding: 16px 30px; border-bottom: 1px solid var(--border); background: var(--surface); position: sticky; top: 0; z-index: 20; gap: 16px; }
.adm-search { display: flex; align-items: center; gap: 9px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px 13px; color: var(--fg-mute); width: 280px; }
.adm-search input { border: none; background: none; outline: none; flex: 1; font-size: 13.5px; color: var(--fg); font-family: inherit; }
.adm-body { padding: 28px 30px; flex: 1; }

.adm-kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; display: flex; flex-direction: column; gap: 3px; }
.adm-kpi .ic { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; margin-bottom: 8px; }

.pill { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.pill-warn { background: oklch(0.82 0.13 75 / 0.2); color: oklch(0.5 0.12 65); }
.pill-ok { background: oklch(0.75 0.14 150 / 0.2); color: oklch(0.46 0.12 150); }
.pill-bad { background: oklch(0.7 0.17 25 / 0.18); color: oklch(0.52 0.16 25); }
.pill-info { background: var(--accent-soft); color: var(--accent); }
.dark .pill-warn { color: oklch(0.82 0.13 80); }
.dark .pill-ok { color: oklch(0.75 0.14 150); }
.dark .pill-bad { color: oklch(0.72 0.16 28); }

.adm-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.adm-card-h { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.adm-card-h h3 { font-size: 15px; font-weight: 700; margin: 0; }

.seg-tabs { display: flex; gap: 4px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 4px; }
.seg-tabs button { border: none; background: none; padding: 7px 14px; border-radius: 7px; font-size: 13px; font-weight: 600; color: var(--fg-mute); transition: all 0.14s; display: inline-flex; align-items: center; gap: 6px; }
.seg-tabs button.on { background: var(--surface); color: var(--fg); box-shadow: var(--shadow-sm); }

@media (max-width: 860px) { .adm { grid-template-columns: 1fr; } .adm-side { display: none; } }

/* ---------- nav NEW badge ---------- */
.nav a .new-tag {
  font-family: var(--font-display); font-size: 9px; font-weight: 700; letter-spacing: 0.06em;
  background: oklch(0.65 0.2 25); color: #fff; border-radius: 5px; padding: 1px 5px; margin-left: 6px;
  vertical-align: middle; text-transform: uppercase;
}
.nav a.ai-link { display: inline-flex; align-items: center; }

/* ---------- AI infinite canvas ---------- */
.ai-stage { position: fixed; inset: 66px 0 0 0; overflow: hidden; background: var(--bg); touch-action: none; user-select: none; }
.ai-stage.grab { cursor: grab; }
.ai-stage.grabbing { cursor: grabbing; }
.ai-grid {
  position: absolute; inset: -4000px; pointer-events: none;
  background-image: radial-gradient(var(--dot) 1.3px, transparent 1.3px);
  background-size: 26px 26px;
}
:root { --dot: oklch(0.85 0.004 95); }
.dark { --dot: oklch(0.32 0.008 270); }
.ai-world { position: absolute; top: 0; left: 0; transform-origin: 0 0; will-change: transform; }

.ai-card {
  position: absolute; width: 340px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; box-shadow: var(--shadow-md); overflow: hidden;
}
.ai-card.sel { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-lg); }
.ai-card-h { display: flex; align-items: center; gap: 9px; padding: 11px 13px; cursor: grab; border-bottom: 1px solid var(--border); }
.ai-card-h:active { cursor: grabbing; }
.ai-card-h .p { flex: 1; font-size: 13px; font-weight: 500; line-height: 1.4; color: var(--fg); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.ai-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 6px; }
.ai-tile { position: relative; aspect-ratio: 1; border-radius: 9px; overflow: hidden; background: var(--surface-2); }
.ai-tile .prev { width: 100%; height: 100%; }
.ai-tile .prev::before {
  background:
    radial-gradient(120% 120% at 28% 18%, oklch(0.72 0.17 var(--h1)), transparent 58%),
    radial-gradient(130% 130% at 84% 90%, oklch(0.46 0.19 var(--h2)), transparent 60%),
    linear-gradient(150deg, oklch(0.52 0.17 var(--h1)), oklch(0.34 0.15 var(--h2)));
}
.dark .ai-tile .prev::before { filter: brightness(0.92) saturate(1.1); }
.ai-tile .prev-tag { font-size: 9px; left: 6px; bottom: 6px; padding: 2px 5px; color: oklch(0.98 0 0); background: oklch(0.2 0.02 270 / 0.4); border-color: oklch(1 0 0 / 0.2); }
.ai-tile-acts { position: absolute; inset: 0; display: flex; align-items: flex-end; justify-content: flex-end; gap: 5px; padding: 7px; opacity: 0; transition: opacity 0.15s; background: linear-gradient(transparent 55%, oklch(0.2 0.02 270 / 0.35)); }
.ai-tile:hover .ai-tile-acts { opacity: 1; }
.ai-tile-btn { width: 28px; height: 28px; border-radius: 8px; border: none; background: oklch(1 0 0 / 0.92); color: oklch(0.25 0.02 270); display: grid; place-items: center; cursor: pointer; box-shadow: var(--shadow-sm); }
.ai-tile-btn:hover { background: #fff; transform: translateY(-1px); }
.ai-card-f { display: flex; align-items: center; gap: 8px; padding: 9px 13px; border-top: 1px solid var(--border); }

/* skeleton shimmer */
.ai-skel { position: absolute; inset: 0; background: linear-gradient(100deg, var(--surface-2) 30%, var(--surface-hover) 50%, var(--surface-2) 70%); background-size: 220% 100%; animation: shimmer 1.2s infinite linear; }
@keyframes shimmer { from { background-position: 180% 0; } to { background-position: -40% 0; } }

/* composer */
.ai-composer {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 30;
  width: min(680px, calc(100vw - 40px)); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: 20px; box-shadow: var(--shadow-lg); padding: 12px 14px;
}
.ai-composer-row { display: flex; align-items: flex-end; gap: 10px; }
.ai-composer textarea {
  flex: 1; border: none; background: none; outline: none; resize: none; font-family: inherit;
  font-size: 15px; color: var(--fg); line-height: 1.5; max-height: 120px; padding: 6px 4px;
}
.ai-composer textarea::placeholder { color: var(--fg-mute); }
.ai-styles { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 10px; }
.ai-style { font-size: 12px; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface-2); color: var(--fg-dim); cursor: pointer; transition: all 0.14s; white-space: nowrap; }
.ai-style.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.ai-gen-btn { width: 44px; height: 44px; border-radius: 13px; border: none; background: var(--accent); color: #fff; display: grid; place-items: center; cursor: pointer; flex: none; transition: all 0.16s; }
.ai-gen-btn:hover { background: var(--accent-press); transform: translateY(-1px); }
.ai-gen-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* zoom + toolbar */
.ai-zoom { position: fixed; bottom: 26px; right: 26px; z-index: 30; display: flex; align-items: center; gap: 4px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 5px; box-shadow: var(--shadow-md); }
.ai-zoom button { width: 34px; height: 34px; border-radius: 8px; border: none; background: none; color: var(--fg-dim); display: grid; place-items: center; cursor: pointer; font-size: 18px; }
.ai-zoom button:hover { background: var(--surface-2); color: var(--fg); }
.ai-zoom .pct { font-size: 12.5px; font-family: "Space Mono", monospace; color: var(--fg-dim); min-width: 46px; text-align: center; }
.ai-hint { position: fixed; top: 82px; left: 50%; transform: translateX(-50%); z-index: 25; font-size: 12.5px; color: var(--fg-mute); background: color-mix(in oklch, var(--surface) 80%, transparent); border: 1px solid var(--border); border-radius: 999px; padding: 6px 16px; backdrop-filter: blur(8px); display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.ai-empty { position: fixed; inset: 66px 0 0 0; display: grid; place-items: center; pointer-events: none; z-index: 1; }

/* ===== AI projects gallery ===== */
. aip-skip {}
.aip-wrap { max-width: 1180px; margin: 0 auto; padding: 40px 28px 60px; min-height: calc(100vh - 66px); }
.aip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1080px) { .aip-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .aip-grid { grid-template-columns: repeat(2, 1fr); } }
.aip-new {
  border: 2px dashed var(--border-strong); border-radius: 16px; background: var(--surface-2);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  aspect-ratio: 4/3; color: var(--fg-mute); cursor: pointer; transition: all 0.18s; font-weight: 600; font-size: 14.5px;
}
.aip-new:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); transform: translateY(-3px); }
.aip-new .plus { width: 52px; height: 52px; border-radius: 16px; background: var(--accent); color: #fff; display: grid; place-items: center; }
.aip-card { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--surface); cursor: pointer; transition: all 0.18s; }
.aip-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.aip-thumb { aspect-ratio: 4/3; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 2px; background: var(--border); position: relative; }
.aip-thumb .prev { width: 100%; height: 100%; }
.aip-thumb .empty { grid-column: 1 / -1; grid-row: 1 / -1; display: grid; place-items: center; color: var(--fg-mute); background: var(--surface-2); }
.aip-meta { padding: 13px 15px; }
.aip-meta .nm { font-size: 14.5px; font-weight: 600; }
.aip-meta .sub { font-size: 12.5px; color: var(--fg-mute); margin-top: 3px; display: flex; gap: 8px; }

/* modal */
.modal-mask { position: fixed; inset: 0; z-index: 80; background: oklch(0.2 0.02 270 / 0.45); backdrop-filter: blur(3px); display: grid; place-items: center; padding: 20px; }
.modal { width: 100%; max-width: 460px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow-lg); overflow: hidden; }
.modal-h { padding: 20px 22px 0; }
.modal-h h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.modal-h p { font-size: 13.5px; color: var(--fg-mute); margin: 6px 0 0; }
.modal-b { padding: 18px 22px; display: flex; flex-direction: column; gap: 16px; }
.modal-f { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.ratio-row { display: flex; gap: 10px; }
.ratio-opt { flex: 1; border: 1px solid var(--border); border-radius: 12px; padding: 12px 8px; text-align: center; cursor: pointer; transition: all 0.14s; background: var(--surface-2); }
.ratio-opt.on { border-color: var(--accent); background: var(--accent-soft); }
.ratio-box { margin: 0 auto 8px; background: var(--fg-mute); border-radius: 3px; }
.ratio-opt.on .ratio-box { background: var(--accent); }
.ratio-opt .lbl { font-size: 12.5px; font-weight: 600; }

/* ===== AI canvas top bar + left rail ===== */
.aic-top { position: fixed; top: 66px; left: 0; right: 0; height: 52px; z-index: 28; display: flex; align-items: center; gap: 12px; padding: 0 18px; background: color-mix(in oklch, var(--bg) 86%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.aic-back { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--fg-dim); border: none; background: none; cursor: pointer; padding: 7px 10px; border-radius: 9px; }
.aic-back:hover { background: var(--surface-2); color: var(--fg); }
.aic-name { font-size: 14.5px; font-weight: 700; letter-spacing: -0.01em; border: 1px solid transparent; background: none; color: var(--fg); padding: 6px 10px; border-radius: 8px; outline: none; font-family: inherit; max-width: 280px; }
.aic-name:hover { background: var(--surface-2); }
.aic-name:focus { border-color: var(--accent); background: var(--surface); }
.aic-save { font-size: 12px; color: var(--fg-mute); display: inline-flex; align-items: center; gap: 6px; }

.aic-rail { position: fixed; left: 16px; top: 50%; transform: translateY(-50%); z-index: 28; display: flex; flex-direction: column; gap: 4px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 7px; box-shadow: var(--shadow-md); }
.aic-rail button { width: 42px; height: 42px; border-radius: 11px; border: none; background: none; color: var(--fg-mute); display: grid; place-items: center; cursor: pointer; transition: all 0.14s; position: relative; }
.aic-rail button:hover { background: var(--surface-2); color: var(--fg); }
.aic-rail button.on { background: var(--accent-soft); color: var(--accent); }
.aic-rail .sep { height: 1px; background: var(--border); margin: 3px 6px; }
.aic-rail button .tip { position: absolute; left: 52px; top: 50%; transform: translateY(-50%); white-space: nowrap; background: oklch(0.22 0.01 270); color: #fff; font-size: 12px; padding: 5px 10px; border-radius: 7px; opacity: 0; pointer-events: none; transition: opacity 0.14s; }
.aic-rail button:hover .tip { opacity: 1; }

/* shift stage/composer down for top bar */
.ai-stage.has-top { inset: 118px 0 0 0; }
.ai-hint.has-top { top: 134px; }