/* ============================================================
   openhome · app design system
   One source of truth for tokens + primitives. Every page links
   this before its own page-specific styles. Keep it lean: tokens,
   layout, and the components used on 2+ screens.
   Brand: local-first, ink + one mint accent. Restraint is the point.
   ============================================================ */

:root {
  /* — surfaces — */
  --bg:        #0e1014;
  --bg-2:      #0b0d11;   /* deeper wells, page gutters */
  --panel:     #171a21;   /* cards, surfaces */
  --panel-2:   #1e222b;   /* raised controls, inputs, hover */
  --panel-3:   #252a34;   /* pressed / active fill */
  --line:      #272c37;   /* borders, dividers */
  --line-soft: #1d2129;   /* hairlines inside cards */

  /* — text — */
  --text:      #e7ebf3;
  --muted:     #8b93a7;
  --faint:     #5b6274;

  /* — brand accent (use for ONE thing per view) — */
  --accent:      #3ddc97;
  --accent-dim:  #1f7a56;
  --accent-glow: rgba(61,220,151,.12);
  --accent-line: rgba(61,220,151,.28);

  /* — signals — */
  --warn:   #f0b429;
  --danger: #ef5350;
  --heat:   #ff8a4c;
  --cool:   #4c9bff;
  --matter: #c39bff;

  /* — type scale — */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* — radii — */
  --r-sm: 8px;
  --r:    12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-pill: 999px;

  /* — spacing — */
  --s-1: 4px;  --s-2: 8px;  --s-3: 12px;
  --s-4: 16px; --s-5: 20px; --s-6: 24px; --s-8: 32px;

  /* — elevation — */
  --shadow-1: 0 1px 2px rgba(0,0,0,.3);
  --shadow-2: 0 8px 24px rgba(0,0,0,.35);
  --shadow-3: 0 18px 55px rgba(0,0,0,.55);

  /* — motion — */
  --ease: cubic-bezier(.2,.8,.2,1);
  --dur:  .18s;
}

* { box-sizing: border-box; }
html, body { max-width: 100%; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration: none; }
img { -webkit-user-drag: none; user-drag: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- typography ---------- */
.eyebrow {
  margin: 0 0 var(--s-3);
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .09em;
  color: var(--muted);
}
.h1 { font-size: clamp(24px, 4vw, 32px); font-weight: 800; letter-spacing: -.02em; margin: 0; }
.h2 { font-size: 19px; font-weight: 700; letter-spacing: -.01em; margin: 0; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.small { font-size: 13px; }
.tnum  { font-variant-numeric: tabular-nums; }

/* ---------- app header ---------- */
.app-header {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: var(--s-3) var(--s-4); flex-wrap: wrap;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) var(--s-6) 14px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
}
.app-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.02em; }
.app-brand img { height: 30px; display: block; }
.app-brand small { color: var(--muted); font-weight: 500; font-size: 13px; }
.spacer { flex: 1; }

.app-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.app-nav a {
  color: var(--muted); font-size: 14px; font-weight: 600;
  padding: 7px 12px; border-radius: var(--r-pill);
  border: 1px solid transparent; transition: color var(--dur), background var(--dur), border-color var(--dur);
}
.app-nav a:hover { color: var(--text); background: var(--panel-2); border-color: var(--line); }
.app-nav a.active { color: var(--accent); background: var(--accent-glow); border-color: var(--accent-line); }

/* ---------- status pill ---------- */
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 13px; border-radius: var(--r-pill);
  font-size: 13px; font-weight: 600;
  background: var(--panel-2); border: 1px solid var(--line);
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.dot.ok   { background: var(--accent); animation: dot-pulse 2.4s infinite; }
.dot.down { background: var(--danger); }
@keyframes dot-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(61,220,151,.45); }
  70%  { box-shadow: 0 0 0 8px rgba(61,220,151,0); }
  100% { box-shadow: 0 0 0 0 rgba(61,220,151,0); }
}

/* ---------- layout ---------- */
.container { max-width: 1120px; margin: 0 auto; padding: var(--s-6); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--s-5); }
.row  { display: flex; align-items: center; gap: var(--s-3); }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.stack > * + * { margin-top: var(--s-4); }

/* ---------- card ---------- */
.card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 96%, white 4%), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  box-shadow: var(--shadow-1);
}
.card--flush { padding: 0; overflow: hidden; }
.card__title {
  margin: 0 0 var(--s-4);
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted);
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}

/* ---------- metric ---------- */
.metric { font-size: 32px; font-weight: 800; letter-spacing: -.03em; line-height: 1.05; }
.metric--sm { font-size: 22px; }
.metric__sub { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* ---------- key/value rows ---------- */
.kv { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line-soft); font-size: 14px; }
.kv:last-child { border-bottom: 0; }
.kv > span:first-child { color: var(--muted); }

/* ---------- badges / chips ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: var(--r-pill);
  color: var(--accent); background: var(--accent-glow); border: 1px solid var(--accent-line);
}
.badge--muted  { color: var(--muted);  background: rgba(139,147,167,.1); border-color: var(--line); }
.badge--warn   { color: var(--warn);   background: rgba(240,180,41,.12); border-color: #5a4a00; }
.badge--danger { color: var(--danger); background: rgba(239,83,80,.12);  border-color: #5a2b2b; }
.badge--matter { color: var(--matter); background: rgba(195,155,255,.1); border-color: #453a5e; }

/* ---------- buttons ---------- */
.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  color: var(--text); background: var(--panel-2); border: 1px solid var(--line);
  border-radius: var(--r); padding: 10px 16px;
  transition: border-color var(--dur), background var(--dur), transform var(--dur);
}
.btn:hover  { border-color: var(--accent-dim); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #08130d; border-color: var(--accent); font-weight: 700; }
.btn--primary:hover { background: color-mix(in srgb, var(--accent) 88%, white); }
.btn--ghost   { background: transparent; }
.btn--sm { padding: 6px 11px; font-size: 13px; border-radius: var(--r-sm); }

/* ---------- inputs ---------- */
.input, select.input {
  font: inherit; width: 100%;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--r);
  color: var(--text); padding: 11px 13px;
}
.input:focus { border-color: var(--accent-dim); outline: none; }

/* ---------- event feed ---------- */
.feed { max-height: 340px; overflow-y: auto; margin: 0 -4px; padding: 0 4px; }
.event { display: flex; align-items: baseline; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 13px; }
.event:last-child { border-bottom: 0; }
.event time { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; font-size: 12px; }
.event .type { font-weight: 600; }

/* ---------- product tiles ---------- */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--s-4); }
.tile { position: relative; display: block; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4/3; }
.tile img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s var(--ease); }
.tile:hover img { transform: scale(1.05); }
.tile span { position: absolute; left: 14px; bottom: 12px; color: var(--text); font-weight: 600; font-size: 14px; z-index: 2; text-shadow: 0 2px 8px rgba(0,0,0,.7); }
.tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(10,12,16,.6), transparent 55%); }

/* ---------- empty state ---------- */
.empty { color: var(--muted); font-size: 14px; padding: var(--s-3) 0; }

/* ---------- footer ---------- */
.app-footer { max-width: 1120px; margin: var(--s-4) auto var(--s-8); padding: var(--s-6) var(--s-6) 0; color: var(--faint); font-size: 12px; border-top: 1px solid var(--line-soft); }
.app-footer a { color: var(--muted); }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .app-header { padding: calc(env(safe-area-inset-top, 0px) + 12px) var(--s-4) 10px; gap: 10px var(--s-3); }
  .app-brand small, .spacer { display: none; }
  .app-nav { order: 3; width: 100%; flex-wrap: nowrap; overflow-x: auto; gap: 6px; padding-bottom: 4px; scrollbar-width: none; }
  .app-nav::-webkit-scrollbar { display: none; }
  .app-nav a { white-space: nowrap; }
  .container { padding: var(--s-4); }
  .metric { font-size: 27px; }
}

/* ---------- bottom tab bar (mobile integrated nav) ---------- */
.oh-tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: none;
  background: rgba(14,16,20,.9); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
  padding: 6px 6px calc(env(safe-area-inset-bottom, 0px) + 6px);
}
.oh-tabbar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-decoration: none; color: var(--muted); font-size: 10.5px; font-weight: 600;
  padding: 6px 2px; border-radius: 12px;
}
.oh-tabbar a .ic { font-size: 21px; line-height: 1; opacity: .75; }
.oh-tabbar a.active { color: var(--accent); }
.oh-tabbar a.active .ic { opacity: 1; }
.oh-tabbar a:active { background: var(--panel-2); }
@media (max-width: 720px) {
  .oh-tabbar { display: flex; }
  .app-nav { display: none; }
  body { padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 68px); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}