/* ─── SnapDrift — premium editorial dark UI ─────────────── */
:root {
  /* base palette */
  --ink-50:  #f6f1e1;
  --ink-100: #e9d9b8;
  --ink-200: #cdd1e3;
  --ink-300: #8c92ab;
  --ink-400: #5a6178;
  --ink-500: #2a3245;
  --ink-600: #1a2332;
  --ink-700: #11182a;
  --ink-800: #0d1521;
  --ink-900: #060b14;

  /* accents */
  --teal-300: #7fdbcf;
  --teal-400: #4fbdb2;
  --teal-500: #2f9a90;
  --teal-600: #1f7771;
  --sage-300: #b8d09a;
  --sage-400: #8aab6e;
  --coral-300: #ffa07a;
  --coral-400: #ff7a59;
  --coral-500: #e85d3a;
  --amber-300: #f6cf7a;
  --amber-400: #e6a23c;
  --peach-300: #e6a682;

  --surface: rgba(255,255,255,0.04);
  --surface-2: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.08);
  --border-2: rgba(255,255,255,0.14);

  --radius-sm: 8px;
  --radius:   16px;
  --radius-lg: 24px;

  --shadow-lift: 0 24px 60px -28px rgba(0,0,0,0.65), 0 2px 8px rgba(0,0,0,0.35);

  --t-fast: 140ms cubic-bezier(.4,.2,.2,1);
  --t-springy: 280ms cubic-bezier(.34,1.56,.64,1);

  --font-body: 'Heebo', system-ui, sans-serif;
  --font-serif: 'Frank Ruhl Libre', serif;
  --font-accent: 'Instrument Serif', serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin:0; padding:0; }
body {
  font-family: var(--font-body);
  color: var(--ink-50);
  background:
    radial-gradient(1100px 700px at 12% -10%, rgba(79,189,178,0.18), transparent 60%),
    radial-gradient(900px 600px at 92% 10%, rgba(255,122,89,0.10), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 28%, var(--ink-900) 100%);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--coral-400); color: var(--ink-900); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.hidden { display: none !important; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.serif { font-family: var(--font-serif); font-weight: 700; letter-spacing: -0.01em; }
.small { font-size: 12px; opacity: 0.72; }
.hl { color: var(--teal-300); }

/* ─── grain & orbs ─────────────────────────────────────── */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.35; mix-blend-mode: overlay;
}
.orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.45;
  animation: orbFloat 22s ease-in-out infinite;
}
.orb.o1 { width: 380px; height: 380px; top: -90px; left: -40px; background: var(--teal-400); }
.orb.o2 { width: 480px; height: 480px; top: 220px; right: -120px; background: var(--coral-400); animation-delay: -7s; }
.orb.o3 { width: 320px; height: 320px; bottom: -120px; left: 38%; background: var(--sage-400); opacity: 0.35; animation-delay: -14s; }
@keyframes orbFloat {
  0%, 100% { transform: translate3d(0,0,0) scale(1); }
  50% { transform: translate3d(40px,-30px,0) scale(1.08); }
}

/* ─── top bar ──────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 80;
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  background: linear-gradient(180deg, rgba(13,21,33,0.72), rgba(13,21,33,0.55));
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 38px; height: 38px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-serif); font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.brand-sub { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-300); letter-spacing: 0.06em; text-transform: lowercase; }

.topnav { display: flex; gap: 4px; }
.tnav-link {
  padding: 8px 14px; border-radius: 10px; font-size: 14.5px; font-weight: 500;
  color: var(--ink-200); transition: all var(--t-fast);
  position: relative;
}
.tnav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: linear-gradient(90deg, var(--teal-400), var(--coral-400));
  border-radius: 1px; transform: scaleX(0); transform-origin: right; transition: transform var(--t-springy);
}
.tnav-link:hover { color: var(--ink-50); background: var(--surface); }
.tnav-link.active { color: var(--ink-50); }
.tnav-link.active::after { transform: scaleX(1); }

.topbar-cta { display: flex; align-items: center; gap: 10px; }
.status-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 100px;
  background: rgba(127,219,207,0.10);
  border: 1px solid rgba(127,219,207,0.30);
  font-family: var(--font-mono); font-size: 11.5px; color: var(--teal-300);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--teal-300);
  box-shadow: 0 0 12px var(--teal-300);
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink { 50% { opacity: 0.35; } }

/* ─── buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 12px;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--ink-50); font-weight: 600; font-size: 14px;
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.btn:hover { transform: translateY(-1px); background: var(--surface-2); border-color: rgba(255,255,255,0.22); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-primary {
  background: linear-gradient(135deg, var(--coral-400) 0%, var(--coral-500) 100%);
  border-color: rgba(255,122,89,0.55);
  color: #1a0c08;
  box-shadow: 0 10px 30px -10px rgba(255,122,89,0.6);
}
.btn-primary:hover { box-shadow: 0 14px 40px -10px rgba(255,122,89,0.7); border-color: var(--coral-300); }
.btn-ghost { background: transparent; }
.icon-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border-2);
  background: var(--surface); color: var(--ink-50); font-size: 14px;
}

/* ─── hero ─────────────────────────────────────────────── */
.hero { position: relative; padding: 64px 0 56px; isolation: isolate; }
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.72;
  filter: saturate(110%);
  z-index: -2;
}
.hero-veil {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 0% 20%, rgba(13,21,33,0) 0%, rgba(13,21,33,0.75) 80%),
    linear-gradient(180deg, rgba(13,21,33,0) 0%, var(--ink-900) 95%);
  z-index: -1;
}
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center;
  position: relative; z-index: 2;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11.5px;
  color: var(--teal-300); letter-spacing: 0.08em;
  padding: 6px 12px;
  border: 1px solid rgba(127,219,207,0.30); border-radius: 100px;
  background: rgba(127,219,207,0.06);
}
.eyebrow-pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--teal-300); box-shadow: 0 0 10px var(--teal-300); animation: blink 2.4s ease-in-out infinite; }

.hero-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(46px, 6.4vw, 84px);
  line-height: 1.02; letter-spacing: -0.02em;
  margin: 18px 0 22px;
}
.hero-title .serif { font-family: var(--font-accent); font-style: italic; color: var(--ink-100); font-weight: 400; }
.hero-title .block { display: block; }
.hero-title em { font-family: var(--font-accent); font-style: italic; color: var(--coral-300); font-weight: 400; }

.hero-sub { font-size: 17px; color: var(--ink-200); max-width: 560px; }
.hero-actions { display: flex; gap: 12px; margin-top: 26px; }
.hero-trust {
  display: flex; align-items: center; gap: 14px; margin-top: 28px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 13px; color: var(--ink-200);
}
.trust-item b { color: var(--ink-50); font-weight: 600; font-size: 15px; }
.trust-divider { width: 1px; height: 18px; background: var(--border-2); }

/* hero preview card */
.hero-card {
  position: relative; padding: 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(255,255,255,0.07) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid var(--border-2);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-lift);
  transform: perspective(1200px) rotateY(-3deg) rotateX(2deg);
}
.hc-head { display: flex; align-items: center; gap: 8px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.hc-dot { width: 11px; height: 11px; border-radius: 50%; box-shadow: 0 0 8px currentColor; }
.hc-title { margin-right: auto; color: var(--ink-300); font-size: 11.5px; padding-right: 8px; }
.hc-body { padding: 16px 0 8px; min-height: 220px; }
.hc-row {
  display: grid; grid-template-columns: 1.6fr 0.9fr 0.9fr;
  gap: 12px; padding: 10px 4px;
  font-size: 13.5px; color: var(--ink-100);
  border-bottom: 1px dashed var(--border);
  align-items: center;
}
.hc-row-head { color: var(--ink-300); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
.hc-row-head { border-bottom-style: solid; }
.hc-row b { font-weight: 600; color: var(--ink-50); }
.hc-foot { display: flex; justify-content: space-between; padding-top: 12px; color: var(--ink-300); }

/* ─── main + section heads ─────────────────────────────── */
.main { position: relative; z-index: 2; padding-bottom: 80px; }

.view { display: none; animation: viewIn 360ms cubic-bezier(.34,1.56,.64,1); }
.view.active { display: block; }
@keyframes viewIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
  margin: 56px 0 24px; flex-wrap: wrap;
}
.section-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(28px, 3.4vw, 42px); margin: 0; letter-spacing: -0.01em;
}
.section-title .serif { font-family: var(--font-accent); font-style: italic; color: var(--ink-200); font-weight: 400; font-size: 0.78em; }
.section-sub { margin: 6px 0 0; color: var(--ink-300); font-size: 15px; max-width: 720px; }
.section-actions { display: flex; align-items: center; gap: 10px; }

/* ─── KPI row ──────────────────────────────────────────── */
.kpi-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.kpi {
  position: relative; padding: 22px 22px 18px;
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.015) 100%);
  border: 1px solid var(--border);
  transition: transform var(--t-fast), border-color var(--t-fast);
}
.kpi:hover { transform: translateY(-3px); border-color: var(--border-2); }
.kpi header { display: flex; justify-content: space-between; align-items: center; }
.kpi-label { color: var(--ink-300); font-size: 13px; letter-spacing: 0.02em; }
.kpi-value { font-family: var(--font-serif); font-size: 44px; font-weight: 700; line-height: 1.05; margin: 14px 0 6px; }
.kpi-foot { font-size: 12.5px; color: var(--ink-300); }
.badge {
  display: inline-flex; padding: 3px 9px; border-radius: 100px; font-size: 10.5px;
  letter-spacing: 0.06em; text-transform: uppercase; font-family: var(--font-mono);
  background: var(--surface); border: 1px solid var(--border);
}
.badge.teal { color: var(--teal-300); border-color: rgba(127,219,207,0.30); }
.badge.coral { color: var(--coral-300); border-color: rgba(255,160,122,0.30); }
.badge.amber { color: var(--amber-300); border-color: rgba(246,207,122,0.30); }
.badge.sage { color: var(--sage-300); border-color: rgba(184,208,154,0.30); }

/* ─── panels ───────────────────────────────────────────── */
.panel {
  background: linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.panel-title { margin: 0; font-family: var(--font-serif); font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.panel-sub { margin: 4px 0 0; color: var(--ink-300); font-size: 13px; }
.link-tab { color: var(--teal-300); font-size: 13px; font-weight: 600; }
.link-tab:hover { color: var(--ink-50); }
.legend { display: flex; gap: 14px; font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-300); }
.lg-key { display: inline-flex; align-items: center; gap: 6px; }
.lg-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }

.dash-grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: 18px; margin-top: 18px; }
.dash-grid.two { grid-template-columns: 1.4fr 1fr; }

/* chart */
.chart-wrap { aspect-ratio: 16 / 6.3; width: 100%; }
.chart-wrap svg { width: 100%; height: 100%; }
.chart-grid line { stroke: rgba(255,255,255,0.05); stroke-width: 1; }
.chart-axis text { fill: var(--ink-300); font-family: var(--font-mono); font-size: 10px; }
.chart-bar { fill: rgba(205,209,227,0.55); transition: fill var(--t-fast); }
.chart-bar:hover { fill: var(--ink-100); }
.chart-line { fill: none; stroke: var(--coral-400); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.chart-area { fill: url(#coralFade); opacity: 0.6; }
.chart-dot { fill: var(--coral-400); }

/* leaderboard */
.leaderboard { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.lb-row {
  display: grid; grid-template-columns: 28px 1fr auto auto; align-items: center; gap: 12px;
  padding: 12px; border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.lb-row:hover { transform: translateY(-1px); border-color: var(--border-2); }
.lb-rank { font-family: var(--font-serif); font-size: 22px; color: var(--ink-200); text-align: center; line-height: 1; }
.lb-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.lb-name { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-url { font-family: var(--font-mono); font-size: 11px; color: var(--ink-300); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 240px; }
.ring {
  width: 36px; height: 36px;
}
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-track { stroke: rgba(255,255,255,0.08); fill: none; stroke-width: 5; }
.ring-fill  { stroke: var(--teal-300); fill: none; stroke-width: 5; stroke-linecap: round; transition: stroke-dashoffset 600ms ease; }
.ring-text  { font-family: var(--font-mono); font-size: 10px; fill: var(--ink-200); transform: rotate(90deg); transform-origin: center; }
.lb-count { font-family: var(--font-mono); font-size: 13px; color: var(--coral-300); }

/* recent snapshots / history list */
.snap-table { display: flex; flex-direction: column; gap: 6px; }
.snap-row {
  display: grid;
  grid-template-columns: 16px 1.3fr 1fr 1fr 0.6fr;
  align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--t-fast);
}
.snap-row:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateX(-2px); }
.snap-pill { width: 8px; height: 8px; border-radius: 50%; }
.snap-pill.changed { background: var(--coral-400); box-shadow: 0 0 8px var(--coral-400); }
.snap-pill.stable { background: var(--teal-400); }
.snap-pill.error { background: var(--amber-400); }
.snap-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.snap-diff { font-family: var(--font-mono); font-size: 12px; color: var(--ink-300); }
.snap-diff .plus { color: var(--teal-300); }
.snap-diff .minus { color: var(--coral-300); }
.snap-time { font-family: var(--font-mono); font-size: 12px; color: var(--ink-300); }

/* art panel */
.panel-art { padding: 0; overflow: hidden; position: relative; min-height: 280px; }
.art-img { position: absolute; inset: 0; background-size: cover; background-position: center; filter: saturate(115%); }
.art-overlay {
  position: absolute; inset: auto 0 0 0;
  padding: 22px 22px 20px;
  background: linear-gradient(0deg, rgba(13,21,33,0.92) 0%, rgba(13,21,33,0) 100%);
}
.art-title { margin: 0; color: var(--ink-50); font-size: 26px; }
.art-title em { font-family: var(--font-accent); font-style: italic; color: var(--coral-300); font-weight: 400; }
.art-sub { margin: 6px 0 0; color: var(--ink-200); font-size: 14px; }

/* ─── watcher grid ─────────────────────────────────────── */
.search-input {
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-50);
  padding: 9px 14px; border-radius: 12px; font-family: var(--font-body); font-size: 13.5px;
  min-width: 240px; outline: none; transition: border-color var(--t-fast);
}
.search-input:focus { border-color: var(--teal-300); }

.watcher-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 16px; }
.watcher-card {
  position: relative; padding: 20px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid var(--border);
  transition: all var(--t-fast);
  overflow: hidden;
}
.watcher-card::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 3px;
  background: var(--watch-color, var(--teal-400));
  box-shadow: 0 0 14px var(--watch-color, var(--teal-400));
}
.watcher-card:hover { transform: translateY(-3px); border-color: var(--border-2); }

.wc-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.wc-name { margin: 0; font-weight: 700; font-size: 16px; padding-left: 8px; }
.wc-status {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 10.5px; padding: 4px 8px;
  border-radius: 100px; border: 1px solid var(--border-2); background: var(--surface);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.wc-status.changed { color: var(--coral-300); border-color: rgba(255,160,122,0.45); background: rgba(255,160,122,0.08); }
.wc-status.stable { color: var(--teal-300); border-color: rgba(127,219,207,0.40); background: rgba(127,219,207,0.06); }
.wc-status.error { color: var(--amber-300); border-color: rgba(246,207,122,0.40); background: rgba(246,207,122,0.06); }
.wc-status.pending { color: var(--ink-300); }

.wc-url { padding-left: 8px; font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-300); margin: 8px 0 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wc-meta { padding-left: 8px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.wc-meta-item { display: flex; flex-direction: column; }
.wc-meta-label { font-family: var(--font-mono); font-size: 9.5px; text-transform: uppercase; color: var(--ink-300); letter-spacing: 0.08em; }
.wc-meta-val { font-weight: 600; font-size: 14px; color: var(--ink-50); }
.wc-sparkline { width: 100%; height: 34px; padding-left: 8px; margin-bottom: 14px; }
.wc-actions { display: flex; gap: 6px; padding-left: 8px; flex-wrap: wrap; }
.wc-actions .btn { flex: 1 1 auto; min-width: 0; padding: 7px 10px; font-size: 12px; }

/* ─── history view ─────────────────────────────────────── */
.history-layout { display: grid; grid-template-columns: 1.05fr 1.45fr; gap: 18px; }
.history-list { display: flex; flex-direction: column; gap: 6px; max-height: 540px; overflow-y: auto; padding-left: 4px; }
.diff-panel { min-height: 540px; display: flex; flex-direction: column; }
.diff-body {
  flex: 1; min-height: 0;
  background: rgba(0,0,0,0.35); border-radius: 12px;
  padding: 18px; margin: 0;
  font-family: var(--font-mono); font-size: 12.5px;
  white-space: pre-wrap; overflow-y: auto; color: var(--ink-100);
  border: 1px solid var(--border);
  line-height: 1.7;
}
.diff-line.added { color: var(--teal-300); }
.diff-line.removed { color: var(--coral-300); }

.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; color: var(--ink-200); }
.toggle input { accent-color: var(--teal-400); transform: translateY(1px); }

/* ─── alerts view ──────────────────────────────────────── */
.panel-mock { margin-bottom: 16px; }
.code-block {
  margin: 0; padding: 16px 18px; border-radius: 12px;
  background: rgba(0,0,0,0.35); border: 1px solid var(--border);
  font-size: 12.5px; color: var(--ink-100); overflow-x: auto;
  line-height: 1.7;
}
.alerts-table { display: flex; flex-direction: column; gap: 6px; }
.alert-row {
  display: grid; grid-template-columns: 16px 1fr 1.4fr auto auto;
  align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 13px;
}
.alert-row .mono { font-size: 11.5px; color: var(--ink-300); }
.alert-status.ok { color: var(--teal-300); }
.alert-status.fail { color: var(--coral-300); }

/* ─── settings ─────────────────────────────────────────── */
.settings-form { padding: 22px; background: linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015)); border: 1px solid var(--border); border-radius: var(--radius); }
.settings-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field-label { font-size: 12.5px; color: var(--ink-300); font-family: var(--font-mono); letter-spacing: 0.04em; }
.field input, .field select {
  background: rgba(0,0,0,0.25); border: 1px solid var(--border);
  color: var(--ink-50); padding: 10px 14px; border-radius: 10px;
  font-family: var(--font-body); font-size: 14px; outline: none;
  transition: border-color var(--t-fast);
}
.field input:focus, .field select:focus { border-color: var(--teal-300); }
.toggle-field { flex-direction: row; align-items: center; gap: 10px; padding: 6px 0; }
.settings-note { color: var(--ink-300); font-size: 12.5px; margin-top: 14px; }

/* ─── docs / tech ──────────────────────────────────────── */
.docs { margin-top: 72px; }
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tech-card { padding: 22px; background: linear-gradient(160deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01)); border: 1px solid var(--border); border-radius: 14px; transition: transform var(--t-fast), border-color var(--t-fast); }
.tech-card:hover { transform: translateY(-2px); border-color: var(--border-2); }
.tech-num { color: var(--coral-300); font-size: 12.5px; letter-spacing: 0.1em; }
.tech-card h4 { margin: 8px 0 6px; font-family: var(--font-serif); font-size: 18px; font-weight: 600; }
.tech-card p { margin: 0; color: var(--ink-300); font-size: 13.5px; }

.footer {
  margin-top: 72px; padding: 24px 0;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: var(--ink-300); font-size: 12.5px;
}
.footer-brand { color: var(--ink-100); font-weight: 600; }
.footer-tail { color: var(--ink-200); }

/* ─── empty state ──────────────────────────────────────── */
.empty { padding: 56px 24px; text-align: center; background: var(--surface); border: 1px dashed var(--border-2); border-radius: var(--radius-lg); }
.empty-art { margin: 0 auto 18px; width: 260px; border-radius: 18px; opacity: 0.85; }
.empty h3 { font-family: var(--font-serif); font-size: 26px; margin: 0 0 6px; }
.empty p { color: var(--ink-300); margin: 0 0 14px; }

/* ─── modal ────────────────────────────────────────────── */
.modal-bg {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6,11,20,0.78);
  backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.modal {
  width: 100%; max-width: 720px; max-height: 90vh; overflow-y: auto;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(28,38,57,0.96), rgba(13,21,33,0.96));
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow-lift);
  animation: modalIn 220ms cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(20px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 24px 16px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; font-family: var(--font-serif); font-size: 22px; }
.modal-body { padding: 22px 24px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ─── toast ────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink-700); border: 1px solid var(--border-2);
  padding: 12px 18px; border-radius: 12px; z-index: 300;
  font-size: 13.5px; box-shadow: var(--shadow-lift);
  animation: toastIn 180ms ease-out;
}
.toast.error { border-color: var(--coral-500); color: var(--coral-300); }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ─── responsive ────────────────────────────────────────── */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { transform: none; }
  .dash-grid, .dash-grid.two { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .history-layout { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .topnav { display: none; }
  .topbar-cta .status-chip { display: none; }
  .hero-title { font-size: 42px; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .snap-row { grid-template-columns: 14px 1.2fr 1fr; }
  .snap-row .snap-time { display: none; }
}
@media (max-width: 540px) {
  .container { padding: 0 16px; }
  .hero { padding: 36px 0 28px; }
  .section-head { flex-direction: column; align-items: stretch; }
  .alert-row { grid-template-columns: 12px 1fr; }
  .alert-row > *:nth-child(n+3) { display: none; }
}