/* ════════════════════════════════════════════════════════════════════
   Caravan — Monochrome Design System
   Loaded by: portal.html, admin/templates/login.html, admin/templates/admin.html
   ════════════════════════════════════════════════════════════════════ */

/* ── Palette (pure monochrome) ──────────────────────────────────── */
:root {
  /* Surfaces */
  --bg-0:   #000000;          /* deepest — sidebars, headers */
  --bg-1:   #0a0a0a;          /* page background */
  --bg-2:   #111111;          /* cards / elevated panels */
  --bg-3:   #161616;          /* inputs / inset surfaces */
  --bg-4:   #1f1f1f;          /* hover states */

  /* Lines */
  --line-1: #1a1a1a;
  --line-2: #262626;
  --line-3: #404040;

  /* Text */
  --text-0: #ffffff;
  --text-1: #e5e5e5;
  --text-2: #a3a3a3;
  --text-3: #737373;
  --text-4: #525252;
  --text-5: #404040;

  /* Functional accents (used sparingly — alive/dead state) */
  --signal-ok:   #34d399;     /* online presence only */
  --signal-warn: #fbbf24;
  --signal-bad:  #f87171;

  /* Typography */
  --sans:  'Inter', system-ui, -apple-system, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* Motion */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-confident: cubic-bezier(.4, 0, .2, 1);
}

/* ── Base ────────────────────────────────────────────────────────── */
* { box-sizing: border-box; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
html { scroll-behavior: smooth; }

::selection { background: var(--text-0); color: var(--bg-0); }
::-moz-selection { background: var(--text-0); color: var(--bg-0); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--line-3); }

/* ── Typography primitives ──────────────────────────────────────── */
.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}
.eyebrow-lg {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
}
.mono { font-family: var(--mono); }
.tabular { font-feature-settings: "tnum" 1, "ss01" 1; font-variant-numeric: tabular-nums; }

/* Display headlines — Inter at heavy weight, tight tracking */
.display {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.92;
}
.display-tight {
  font-family: var(--sans);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.88;
}

/* Hairline rules */
.hairline { height: 1px; background: var(--line-1); border: 0; }
.hairline-2 { height: 1px; background: var(--line-2); border: 0; }

/* Underline-on-hover link */
.underline-link {
  position: relative;
  color: inherit;
  text-decoration: none;
  display: inline-block;
}
.underline-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 280ms var(--ease-out);
}
.underline-link:hover::after { transform: scaleX(1); }

/* ── Status pills ────────────────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 2px 9px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-2);
  color: var(--text-2);
}
.pill-ok    { color: var(--signal-ok);   border-color: rgba(52, 211, 153, 0.3); background: rgba(52, 211, 153, 0.06); }
.pill-warn  { color: var(--signal-warn); border-color: rgba(251, 191, 36, 0.3); background: rgba(251, 191, 36, 0.06); }
.pill-bad   { color: var(--signal-bad);  border-color: rgba(248, 113, 113, 0.3); background: rgba(248, 113, 113, 0.06); }
.pill-mute  { color: var(--text-3);      border-color: var(--line-2); background: rgba(255, 255, 255, 0.02); }

/* ── Online presence dot ────────────────────────────────────────── */
.online-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-5);
  flex-shrink: 0;
  transition: background 200ms ease, box-shadow 200ms ease;
}
.online-dot.on {
  background: var(--signal-ok);
  box-shadow: 0 0 0 2px rgba(52, 211, 153, 0.18), 0 0 8px rgba(52, 211, 153, 0.55);
  animation: dot-breath 2.6s ease-in-out infinite;
}
@keyframes dot-breath {
  0%, 100% { box-shadow: 0 0 0 2px rgba(52, 211, 153, 0.18), 0 0 8px rgba(52, 211, 153, 0.55); }
  50%      { box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.10), 0 0 12px rgba(52, 211, 153, 0.75); }
}

/* ── Buttons ────────────────────────────────────────────────────── */

/* Primary — white bg, black text */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 14px 26px;
  background: var(--text-0);
  color: var(--bg-0);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.005em;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 200ms var(--ease-confident), box-shadow 200ms ease, background 200ms ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--text-1);
  transform: translateY(-1px);
  box-shadow: 0 10px 30px -10px rgba(255, 255, 255, 0.25);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary .arrow { transition: transform 200ms var(--ease-confident); }
.btn-primary:hover .arrow { transform: translateX(3px); }

/* Ghost — hairline border */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 13px 22px;
  background: transparent;
  color: var(--text-1);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 200ms ease, color 200ms ease, transform 200ms var(--ease-confident);
  text-decoration: none;
  white-space: nowrap;
}
.btn-ghost:hover { border-color: var(--text-1); color: var(--text-0); transform: translateY(-1px); }

/* Mono ghost — for utility actions */
.btn-mono {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 8px 14px;
  background: transparent;
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  cursor: pointer;
  transition: all 200ms ease;
  text-decoration: none;
}
.btn-mono:hover { color: var(--text-0); border-color: var(--text-1); }

/* Destructive */
.btn-danger {
  background: rgba(248, 113, 113, 0.08);
  color: var(--signal-bad);
  border: 1px solid rgba(248, 113, 113, 0.35);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease;
}
.btn-danger:hover { background: var(--signal-bad); color: var(--bg-0); border-color: var(--signal-bad); }

/* ── Inputs ─────────────────────────────────────────────────────── */
.input {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  padding: 11px 14px;
  color: var(--text-0);
  font-family: var(--sans);
  font-size: 14px;
  outline: none;
  border-radius: 8px;
  transition: border-color 200ms ease, background 200ms ease;
}
.input:focus {
  border-color: var(--text-0);
  background: var(--bg-2);
  box-shadow: 0 0 0 1px var(--text-0);
}
.input::placeholder { color: var(--text-4); }

/* ── Cinematic motion ───────────────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}
.fade-up { animation: fade-up 1s var(--ease-out) backwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.22s; }
.delay-3 { animation-delay: 0.34s; }
.delay-4 { animation-delay: 0.46s; }
.delay-5 { animation-delay: 0.58s; }
.delay-6 { animation-delay: 0.7s; }
.delay-7 { animation-delay: 0.82s; }
.delay-8 { animation-delay: 0.94s; }

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.fade-in { animation: fade-in 1.1s var(--ease-out) backwards; }

/* Letter-by-letter reveal — used on hero wordmark */
@keyframes glyph-rise {
  from { opacity: 0; transform: translateY(0.3em); filter: blur(6px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.letter-reveal > span {
  display: inline-block;
  opacity: 0;
  animation: glyph-rise 1s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 50ms + 200ms);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }

/* Tab crossfade — used by admin showTab */
@keyframes tab-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.tab-fading-in { animation: tab-fade-in 280ms var(--ease-out) forwards; }

/* Subtle text shimmer — for hero headlines */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.shimmer-text {
  background: linear-gradient(90deg, var(--text-0) 0%, var(--text-3) 25%, var(--text-0) 50%, var(--text-3) 75%, var(--text-0) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: shimmer 8s linear infinite;
}

/* Cursor blink — wordmark caret */
@keyframes blink { 50% { opacity: 0; } }
.cursor-blink::after {
  content: '_';
  animation: blink 1.1s steps(1) infinite;
  color: currentColor;
  margin-left: -2px;
}

/* Marquee */
@keyframes marquee-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-track {
  display: inline-flex;
  white-space: nowrap;
  animation: marquee-x 50s linear infinite;
  gap: 4rem;
}
.marquee-track:hover { animation-play-state: paused; }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in, .letter-reveal > span, .reveal, .marquee-track,
  .online-dot.on, .shimmer-text, .cursor-blink::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ── Backgrounds ─────────────────────────────────────────────────── */

/* Grid — used on landing hero */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 90%);
}

/* Noise overlay */
.bg-noise::before {
  content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.025; mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Cursor spotlight — radial gradient that follows pointer */
.spotlight {
  position: fixed; pointer-events: none; z-index: 1;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
  transform: translate(-50%, -50%);
  transition: opacity .25s;
  opacity: 0;
}

/* Vignette — softens edges */
.vignette::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 90% 70% at 50% 50%, transparent 35%, rgba(0,0,0,0.55) 100%);
  z-index: 1;
}

/* Dot grid — for login */
.bg-dot-grid {
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.05) 1px, transparent 0);
  background-size: 28px 28px;
  background-position: -14px -14px;
}

/* ── Layout ─────────────────────────────────────────────────────── */
.section {
  padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 5vw, 4rem);
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.container-narrow {
  max-width: 920px;
  margin: 0 auto;
  width: 100%;
}

/* Tasteful divider with center-fade */
.divider-fade {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--text-0);
  z-index: 100;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 100ms linear;
}

/* Live status pill — used on landing nav */
.pill-live {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--text-2);
}
.pill-live .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal-ok);
  box-shadow: 0 0 8px var(--signal-ok);
  animation: dot-breath 2s ease-in-out infinite;
}