/* ==========================================================================
   Pulse — dev mission control
   Dark, warm, data-dense. No frameworks, no build step.
   ========================================================================== */

:root {
  --bg-0: #131110;        /* warm near-black — app background */
  --bg-1: #1A1715;        /* main canvas */
  --card: #221E1A;        /* cards */
  --border: #352F28;      /* card borders / dividers */
  --text: #EDE6DB;        /* warm off-white */
  --dim: #A99F90;
  --muted: #6F675B;
  --accent: #E8A33D;      /* amber — brand + primary series */
  --copper: #C96F4A;
  --sand: #BFA46F;
  --sage: #8FA37E;
  --slate: #7E93A3;
  --good: #5DB87A;        /* on-track / live (semantic) */
  --warn: #E8A33D;        /* stalled / blocked */
  --bad: #D96C5F;         /* reserved for genuinely bad */

  --radius: 14px;
  --tab-bar-height: 58px;

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: none;
  touch-action: manipulation;
}
body { min-height: 100vh; min-height: 100dvh; background: var(--bg-1); }
button { font: inherit; color: inherit; background: none; border: none; padding: 0; cursor: pointer; }
h1, h2 { margin: 0; font-weight: 650; }
code { font-family: var(--font-mono); font-size: 0.85em; color: var(--sand); }

/* ----- header ----- */
.app-header {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: baseline; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: color-mix(in srgb, var(--bg-0) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand h1 { font-size: 20px; letter-spacing: 0.3px; }
.brand-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); align-self: center;
  box-shadow: 0 0 8px color-mix(in srgb, var(--accent) 70%, transparent);
}
.brand-sub { font-size: 12px; color: var(--muted); }
.header-meta { display: flex; gap: 8px; align-items: center; font-size: 11.5px; color: var(--muted); }

/* ----- layout ----- */
.app-main {
  max-width: 760px; margin: 0 auto;
  padding: 14px 14px calc(var(--tab-bar-height) + 24px + env(safe-area-inset-bottom));
}
.tab-panel > * + * { margin-top: 12px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.card-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 10px;
}
.card-head h2 { font-size: 13.5px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.6px; }
.card-note { font-size: 12px; color: var(--muted); text-align: right; }

.fineprint { font-size: 11.5px; color: var(--muted); padding: 0 4px; }

/* ----- stat cards ----- */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 12px 10px;
}
.stat-card .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.6px; }
.stat-card .v { font-size: 22px; font-weight: 700; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat-card .s { font-size: 11.5px; color: var(--dim); margin-top: 2px; font-variant-numeric: tabular-nums; }

/* ----- badges & chips ----- */
.badge {
  display: inline-block; padding: 1px 7px; border-radius: 999px;
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.3px;
}
.badge-good  { background: color-mix(in srgb, var(--good) 18%, transparent); color: var(--good); }
.badge-warn  { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge-dim   { background: color-mix(in srgb, var(--dim) 14%, transparent); color: var(--dim); }
.chip {
  display: inline-block; padding: 0 6px; border-radius: 6px;
  background: color-mix(in srgb, var(--sand) 14%, transparent);
  color: var(--sand); font-size: 10.5px; font-family: var(--font-mono);
}

/* ----- range toggle ----- */
.range-toggle { display: flex; gap: 6px; }
.range-toggle button {
  padding: 5px 14px; border-radius: 999px; font-size: 12.5px;
  border: 1px solid var(--border); color: var(--dim); background: var(--card);
}
.range-toggle button.on { background: var(--accent); color: #1A1410; border-color: var(--accent); font-weight: 650; }

/* ----- charts ----- */
.chart svg { display: block; width: 100%; height: auto; }
.hbars { display: grid; gap: 7px; }
.hbar-row { display: grid; grid-template-columns: 110px 1fr 64px; gap: 8px; align-items: center; }
.hbar-label { font-size: 12px; color: var(--dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hbar-track { display: block; height: 12px; border-radius: 6px; background: color-mix(in srgb, var(--border) 55%, transparent); overflow: hidden; }
.hbar-fill { display: block; height: 100%; border-radius: 6px; }
.hbar-val { font-size: 11.5px; color: var(--dim); text-align: right; font-variant-numeric: tabular-nums; }

/* ----- heatmap ----- */
.heatmap { display: grid; grid-template-columns: 30px 1fr; gap: 4px; }
.heatmap-rowlabel { font-size: 10px; color: var(--muted); display: flex; align-items: center; }
.heatmap-row { display: grid; grid-template-columns: repeat(24, 1fr); gap: 2px; }
.heatmap-cell { aspect-ratio: 1; border-radius: 2.5px; background: color-mix(in srgb, var(--border) 45%, transparent); }
.heatmap-hours { display: grid; grid-template-columns: 30px 1fr; gap: 4px; margin-top: 2px; }
.heatmap-hourlabels { display: grid; grid-template-columns: repeat(24, 1fr); font-size: 8.5px; color: var(--muted); }
.heatmap-hourlabels span:nth-child(odd) { visibility: hidden; }

/* ----- sessions ----- */
.session-list { list-style: none; margin: 0; padding: 0; }
.session-list li { padding: 9px 0; border-top: 1px solid var(--border); }
.session-list li:first-child { border-top: none; }
.session-line1 { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.session-label { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-cost { font-size: 12px; color: var(--dim); font-variant-numeric: tabular-nums; white-space: nowrap; }
.session-line2 { display: flex; gap: 8px; margin-top: 3px; font-size: 11px; color: var(--muted); flex-wrap: wrap; align-items: center; }

/* ----- project cards ----- */
.project-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 13px 14px; margin-top: 10px;
}
.project-card:first-child { margin-top: 0; }
.project-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.project-name { font-size: 14.5px; font-weight: 650; }
.progress-track {
  height: 8px; border-radius: 4px; margin-top: 9px;
  background: color-mix(in srgb, var(--border) 55%, transparent); overflow: hidden;
}
.progress-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--copper), var(--accent)); }
.project-stats {
  display: flex; gap: 14px; margin-top: 8px; font-size: 11.5px; color: var(--dim);
  flex-wrap: wrap; font-variant-numeric: tabular-nums;
}
.project-next { margin-top: 7px; font-size: 12px; color: var(--muted); }
.project-next b { color: var(--dim); font-weight: 600; }

/* ----- bottom tab bar ----- */
.tab-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: grid; grid-template-columns: repeat(4, 1fr);
  height: calc(var(--tab-bar-height) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in srgb, var(--bg-0) 92%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
}
.tab-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: 10.5px; color: var(--muted); letter-spacing: 0.3px;
}
.tab-btn .tab-ico { font-size: 15px; line-height: 1; }
.tab-btn.on { color: var(--accent); }

@media (min-width: 560px) {
  .stat-grid { gap: 12px; }
  .stat-card .v { font-size: 26px; }
}