:root {
  --bg: #0a0e0f;
  --panel: #12181a;
  --panel-2: #1a2123;
  --ink: #f2f5f3;
  --ink-dim: #8a9396;
  --ink-faint: #4a5254;
  --accent: #ff3c28;        /* dragon red */
  --accent-2: #ffb800;       /* gold */
  --ok: #2ecc71;
  --warn: #ff3c28;
  --border: #222b2d;
  --grid: rgba(255,255,255,.04);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  overscroll-behavior: none;
  -webkit-user-select: none; user-select: none;
  height: 100%;
}
body {
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  background-image:
    radial-gradient(circle at 20% 0%, rgba(255,60,40,.08), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(255,184,0,.04), transparent 50%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, auto, 32px 32px, 32px 32px;
}

/* ---------- HEADER ---------- */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px 8px;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex; align-items: center; gap: 10px;
}
.mark {
  width: 28px; height: 28px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 0, 80% 50%, 100% 100%, 0 100%, 20% 50%);
}
.brand-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px; letter-spacing: .15em;
}
.brand-text span { color: var(--accent); }
.status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .2em;
  color: var(--ink-dim);
  display: flex; align-items: center; gap: 6px;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ink-faint);
}
.dot.live { background: var(--ok); box-shadow: 0 0 8px var(--ok); animation: pulse 1.4s infinite; }
.dot.err { background: var(--warn); }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

/* ---------- TABS ---------- */
nav.tabs {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--border);
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .18em;
  font-size: 14px;
}
nav.tabs button {
  background: transparent; color: var(--ink-dim);
  border: none; padding: 14px 0; cursor: pointer;
  position: relative;
  font-family: inherit; letter-spacing: inherit; font-size: inherit;
}
nav.tabs button.active { color: var(--ink); }
nav.tabs button.active::after {
  content: ''; position: absolute; left: 20%; right: 20%; bottom: -1px;
  height: 2px; background: var(--accent);
}

main { padding: 16px 16px 120px; }
.view { display: none; }
.view.active { display: block; animation: fade .3s ease; }
@keyframes fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- STAT CARDS ---------- */
.primary-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 16px 12px;
  position: relative;
  overflow: hidden;
}
.stat.hero {
  grid-column: span 2;
  background: linear-gradient(135deg, #1a0806 0%, #12181a 80%);
  border-color: rgba(255,60,40,.3);
}
.stat.hero::before {
  content: ''; position: absolute; top: 0; right: 0; width: 4px; height: 100%;
  background: var(--accent);
}
.stat.hero::after {
  content: '●'; position: absolute; bottom: 10px; right: 14px;
  color: var(--accent); font-size: 10px;
  animation: blink 1.4s infinite;
}
@keyframes blink {
  0%, 100% { opacity: .3; }
  50% { opacity: 1; }
}
.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--ink-dim);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex; justify-content: space-between; align-items: center;
}
.stat-label .unit {
  color: var(--ink-faint);
  font-weight: 400;
}
.stat-value {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 56px;
  line-height: .95;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
}
.stat.hero .stat-value {
  font-size: 96px;
  color: var(--accent);
  text-shadow: 0 0 40px rgba(255,60,40,.3);
}
.stat-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-dim);
  margin-top: 4px;
}

/* ---------- PROFILE BAR ---------- */
.profile-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 10px;
  overflow-x: auto;
}
.profile-bar-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .2em;
  color: var(--ink-dim);
  flex-shrink: 0;
}
.profile-pills {
  display: flex; gap: 6px; flex: 1;
}
.pill {
  padding: 6px 12px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--ink-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: .08em;
  cursor: pointer;
  white-space: nowrap;
  font-weight: 500;
}
.pill.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.pill .dps {
  opacity: .7;
  margin-left: 6px;
  font-size: 10px;
}

/* ---------- TIMER BAR ---------- */
.timer-bar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center;
}
.timer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}
.timer .ms { color: var(--ink-dim); font-size: 18px; }
.timer-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .2em;
  color: var(--ink-dim); text-transform: uppercase;
}

/* ---------- CONTROLS ---------- */
.controls {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, transparent, var(--bg) 30%);
  display: flex; gap: 10px;
  z-index: 10;
}
.btn {
  flex: 1;
  padding: 18px 0;
  border: none;
  border-radius: 4px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px;
  letter-spacing: .2em;
  cursor: pointer;
  transition: transform .08s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(255,60,40,.3);
}
.btn-secondary {
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--border);
}
.btn-ghost {
  background: transparent;
  color: var(--ink-dim);
  border: 1px solid var(--border);
}
.btn-lap {
  background: var(--accent-2);
  color: #000;
}
.btn-wide-fixed { flex: 0 0 auto; padding: 18px 20px; }
.btn-compact { padding: 8px 14px; font-size: 14px; flex: none; }
.btn:disabled { opacity: .4; pointer-events: none; }
.danger-btn { color: var(--accent); border-color: var(--accent); }

/* ---------- SPLITS LIST ---------- */
.splits {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-top: 10px;
  overflow: hidden;
}
.splits-head {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr 1fr;
  padding: 10px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .18em;
  color: var(--ink-dim); text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.split-row {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 1fr 1fr;
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid var(--border);
}
.split-row:last-child { border-bottom: none; }
.split-row .n { color: var(--accent); font-weight: 700; }
.splits-empty {
  padding: 28px 16px;
  text-align: center;
  color: var(--ink-faint);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: .15em;
}

/* ---------- SETUP / CALIBRATION ---------- */
.setup {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px;
  margin-top: 12px;
}
.setup h3 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .15em;
  font-size: 16px;
  margin: 0 0 12px;
  color: var(--ink);
}
.setup-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}
.setup-row:last-child { border-bottom: none; }
.setup-label {
  font-size: 13px;
  color: var(--ink-dim);
}
.setup-label.danger { color: var(--accent); }
.setup-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}
.setup-note {
  font-size: 12px;
  color: var(--ink-dim);
  line-height: 1.6;
  margin: 0 0 12px;
}
input[type="range"] {
  width: 55%; accent-color: var(--accent);
}
input[type="number"], select, input[type="text"] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  width: 100px;
}
input[type="text"] { width: auto; }
.add-profile {
  margin-top: 12px;
  display: flex; gap: 8px;
}
.add-profile input[type="text"] {
  flex: 1;
  padding: 8px 10px;
}

/* profile list rows */
.profile-row {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  display: flex; align-items: center; gap: 10px;
}
.profile-row-main {
  flex: 1;
}
.profile-row-name {
  font-size: 14px; font-weight: 600;
}
.profile-row-active {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: .15em;
  font-family: 'JetBrains Mono', monospace;
  margin-left: 6px;
}
.profile-row-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  margin-top: 2px;
}
.profile-row-status.cal { color: var(--ok); }
.profile-row-status.uncal { color: var(--ink-faint); }

/* ---------- HISTORY ---------- */
.session-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 16px;
  margin-bottom: 10px;
  cursor: pointer;
  position: relative;
}
.session-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--accent);
}
.session-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .15em;
  color: var(--ink-dim); text-transform: uppercase;
  margin-bottom: 6px;
}
.session-profile-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; letter-spacing: .15em;
  color: var(--accent-2);
  margin-left: 8px;
}
.session-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
}
.session-stat .l {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; letter-spacing: .15em;
  color: var(--ink-faint); text-transform: uppercase;
}
.session-stat .v {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
}
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-faint);
}
.empty h2 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .2em;
  font-size: 22px;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.empty p { font-size: 13px; }

/* ---------- PERMISSIONS PROMPT ---------- */
.perms {
  background: linear-gradient(135deg, #1a0806, #12181a);
  border: 1px solid rgba(255,60,40,.3);
  border-radius: 4px;
  padding: 16px;
  margin-bottom: 12px;
}
.perms h3 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .15em;
  margin: 0 0 6px;
  color: var(--accent);
}
.perms p {
  font-size: 12px; color: var(--ink-dim);
  margin: 0 0 10px;
  line-height: 1.5;
}
.perms button {
  background: var(--accent);
  color: #fff; border: none;
  padding: 10px 16px;
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .15em;
  font-size: 14px;
  border-radius: 3px;
  cursor: pointer;
}

/* ---------- GRAPH ---------- */
.sparkline {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 14px;
  margin-top: 10px;
}
.sparkline-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: .2em;
  color: var(--ink-dim); text-transform: uppercase;
  margin-bottom: 8px;
}
svg.spark { width: 100%; height: 80px; display: block; }

/* ---------- MODAL ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.75);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 20px;
  max-width: 420px; width: 100%;
  border-top: 3px solid var(--accent);
}
.modal h3 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: .18em;
  font-size: 22px;
  margin: 0 0 8px;
  color: var(--accent);
}
.modal p {
  font-size: 13px;
  color: var(--ink-dim);
  line-height: 1.6;
  margin: 0 0 14px;
}
.modal .hint {
  font-size: 11px; color: var(--ink-faint);
}
.calib-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 14px 0;
}
.calib-stat {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  text-align: center;
}
.calib-stat.accent { border-color: var(--accent); }
.calib-stat.accent .l, .calib-stat.accent .v { color: var(--accent); }
.calib-stat .l {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; letter-spacing: .15em;
  color: var(--ink-faint); text-transform: uppercase;
  margin-bottom: 4px;
}
.calib-stat .v {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  font-variant-numeric: tabular-nums;
}
.modal-actions {
  display: flex; gap: 8px; margin-top: 14px;
}
.modal-actions .btn {
  padding: 14px 0; font-size: 16px;
}
.distance-input {
  display: flex; align-items: center; gap: 10px;
  margin: 14px 0;
}
.distance-input input {
  flex: 1;
  font-size: 18px;
  padding: 10px;
  text-align: center;
}
.distance-input-unit {
  color: var(--ink-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
}

/* ---------- UPDATE TOAST ---------- */
.toast {
  position: fixed;
  bottom: calc(100px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 99px;
  padding: 10px 10px 10px 18px;
  display: flex; align-items: center; gap: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: .1em;
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
}
.toast button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 99px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  letter-spacing: .18em;
  cursor: pointer;
}