/* CSS RESET & VARS */
:root {
  --bg-color: #000000;
  --panel-bg: #121214;
  --card-bg: #1c1c1e;
  --card-hover: #2c2c2e;

  --text: #ffffff;
  --muted: #8e8e93;
  --muted-dark: #636366;

  /* Whoop-like color palette */
  --teal: #10ff98;      /* Vibrant Green/Teal */
  --orange: #ff3b3b;    /* Bright Red/Orange */
  --yellow: #ffd60a;    /* Bright Yellow */
  --blue: #0a84ff;      /* UI blue */
  --purple: #8e5cff;
  --accent: #10ff98;

  --track-color: #2c2c2e;

  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --safe-top: env(safe-area-inset-top, 20px);
  --safe-bottom: env(safe-area-inset-bottom, 20px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, sans-serif;
  background-color: var(--bg-color);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(85px + var(--safe-bottom));
  padding-top: calc(60px + var(--safe-top));
  overflow-x: hidden;
}

/* TYPOGRAPHY */
h1, h2, h3, strong {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.muted { color: var(--muted); }
.hero-text { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.04em; margin: 0; }

/* LAYOUT & UTILS */
.app-container {
  padding: 0 16px;
  max-width: 600px;
  margin: 0 auto;
}

.view {
  display: none;
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.view.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.flex-between { display: flex; justify-content: space-between; align-items: center; }
.center-content { text-align: center; }
.pad-x { padding: 0 8px; }
.padded { padding: 16px; }
.padded-content { padding: 20px 16px; }
.mt-10 { margin-top: 10px; }
.mt-15 { margin-top: 15px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-15 { margin-bottom: 15px; }

/* HEADER */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(60px + var(--safe-top));
  padding-top: var(--safe-top);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 20px;
  padding-right: 20px;
  z-index: 100;
  border-bottom: 1px solid var(--panel-bg);
}

.logo {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: #fff;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--muted);
}
.status-dot::before {
  content: ''; display: inline-block; width: 6px; height: 6px;
  border-radius: 50%; background: var(--teal); margin-right: 6px;
  vertical-align: middle;
}
.status-dot[data-state="not_found"]::before,
.status-dot[data-state="reconnecting"]::before,
.status-dot[data-state="offline"]::before {
  background: var(--orange);
}
.status-dot[data-state="scanning"]::before,
.status-dot[data-state="soak_complete"]::before {
  background: var(--yellow);
}

.header-right { display: flex; align-items: center; gap: 12px; }
.battery-pill {
  font-size: 0.75rem; font-weight: 600;
  background: var(--card-bg); padding: 4px 8px;
  border-radius: 12px; border: 1px solid var(--track-color);
}

/* SYNC BAR */
.sync-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 4px; margin-bottom: 16px;
}
.sync-time { font-size: 0.8rem; color: var(--muted); font-weight: 500;}

/* BUTTONS */
button { font-family: inherit; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; }
button:active { transform: scale(0.96); }
.pill-button {
  border-radius: 20px; padding: 6px 14px;
}
.pill-button.primary { background: var(--text); color: var(--bg-color); }
.pill-button.primary:hover { background: var(--muted); }
.pill-button.secondary { background: var(--card-bg); color: var(--text); }
.pill-button.secondary:hover { background: var(--card-hover); }
.pill-button.outline { background: transparent; border: 1px solid var(--track-color); color: var(--text); }

.icon-button {
  background: transparent; color: var(--text); font-size: 1.2rem;
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
}
.icon-button.outline { border: 1px solid var(--track-color); background: var(--panel-bg); }
.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sync-action {
  white-space: nowrap;
}
.compact-actions {
  justify-content: flex-end;
  gap: 6px;
}
.compact-actions .pill-button {
  padding: 5px 10px;
  font-size: 0.74rem;
}

/* CARDS & PANELS */
.app-card {
  background: var(--panel-bg);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  overflow: hidden;
  border: 1px solid var(--track-color);
}
.card-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--card-bg);
}
.card-header h2 { font-size: 1rem; color: #fff; }
.card-header.flush {
  padding: 0 0 14px;
  border-bottom: 0;
}
.tiny-label {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* DATA RINGS (SVG) */
.ring-row {
  display: flex;
  justify-content: space-around;
  margin: 10px 0 30px;
}
.ring-card {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  cursor: pointer;
}
.ring-sub {
  margin-top: 8px; font-size: 0.75rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
}
.progress-track { stroke: var(--track-color); }
.progress-value { stroke-linecap: round; transition: stroke-dashoffset 1.2s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.3s; }

/* HERO SECTIONS */
.hero-section { padding: 30px 0; }
.view-title { font-size: 1.5rem; margin-bottom: 20px; }
.align-left { text-align: left; }

/* MINI METRICS CARD GRID */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.mini-card {
  background: var(--panel-bg); border-radius: var(--radius-md);
  padding: 16px; border: 1px solid var(--track-color);
  display: flex; align-items: flex-start; gap: 12px;
}
.mini-card .glyph {
  font-size: 1.25rem; font-weight: 900; color: var(--muted-dark);
  background: var(--card-bg); width: 40px; height: 40px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.mini-card div:last-child { display: flex; flex-direction: column; justify-content: center; }
.mini-card strong { font-size: 1.2rem; margin-bottom: 2px; }
.mini-card span { font-size: 0.75rem; color: var(--muted); font-weight: 500; }

/* DETAIL STACKS (List rows) */
.data-stack, .detail-row { }
.detail-row {
  display: flex; align-items: center;
  padding: 16px; border-bottom: 1px solid var(--track-color);
}
.detail-row:last-child { border-bottom: none; }
.detail-row .glyph {
  font-size: 1rem; font-weight: 800; color: var(--text);
  width: 36px; min-width: 36px; height: 36px; border-radius: 8px; background: var(--card-bg);
  display: flex; align-items: center; justify-content: center; margin-right: 16px;
}
.detail-row div:nth-child(2) { flex: 1; display: flex; flex-direction: column; }
.detail-row div:nth-child(2) strong { font-size: 0.95rem; }
.detail-row div:nth-child(2) span { font-size: 0.75rem; color: var(--muted); margin-top: 2px;}
.detail-row > strong { font-size: 1.1rem; font-weight: 800; }
.empty {
  width: 100%;
  padding: 14px;
  border: 1px dashed var(--track-color);
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

/* METERS / ZONES */
.zone-bars { padding: 16px; }
.zone-row { margin-bottom: 12px; }
.zone-row:last-child { margin-bottom: 0; }
.zone-row > div:first-child { display: flex; justify-content: space-between; font-size: 0.8rem; margin-bottom: 6px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;}
.zone-row > div:first-child span { color: var(--muted); }
.meter { height: 8px; background: var(--track-color); border-radius: 4px; overflow: hidden; }
.meter i { display: block; height: 100%; border-radius: 4px; transition: width 0.8s ease-out; }

/* TREND GRAPHS */
.trend-container { padding: 20px; height: 180px; position: relative; }
.bar-trend {
  display: flex; align-items: flex-end; justify-content: space-between; height: 100%; width: 100%; gap: 6px;
}
.bar-day {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%;
}
.bar-day i {
  width: 100%; background: var(--orange); border-radius: 4px 4px 0 0;
  transition: height 0.8s ease, background 0.3s;
}
.bar-day.ok i { background: var(--teal); }
.bar-day strong {
  margin-bottom: 4px; font-size: 0.7rem; color: var(--text); opacity: 0; transition: opacity 0.2s;
}
.bar-day:hover strong { opacity: 1; }
.bar-day small {
  margin-top: 8px; font-size: 0.65rem; color: var(--muted); font-weight: 600; text-transform: uppercase;
}

.line-container { overflow: visible; }
.line-trend svg { width: 100%; height: 100%; overflow: visible; }
.spark-line { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.spark-area { fill: url(#area-gradient); opacity: 0.2; }
.spark-dot { fill: var(--bg-color); stroke: var(--teal); stroke-width: 2; z-index: 2; }

/* SIGNAL CARDS */
.signal-grid,
.load-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}
.load-grid {
  padding: 0;
}
.signal-card {
  min-width: 0;
  background: var(--card-bg);
  border: 1px solid var(--track-color);
  border-radius: var(--radius-md);
  padding: 14px;
}
.signal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.signal-head span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.signal-head strong {
  font-size: 1.05rem;
  text-align: right;
}
.signal-chart {
  min-height: 54px;
  margin: 12px 0 8px;
}
.signal-card p,
.chart-note {
  color: var(--muted);
  font-size: 0.75rem;
}
.mini-empty {
  padding: 15px 8px;
}
.mini-spark {
  display: block;
  width: 100%;
  height: 54px;
}
.mini-spark path {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.stacked-bar {
  display: flex;
  width: 100%;
  height: 16px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--track-color);
}
.stacked-bar i {
  min-width: 2px;
  height: 100%;
}
.stage-timeline {
  display: flex;
  width: 100%;
  min-height: 38px;
  overflow: hidden;
  border-radius: 14px;
  background: var(--track-color);
}
.stage-timeline.compact {
  min-height: 22px;
  border-radius: 999px;
}
.stage-timeline i {
  min-width: 1px;
}
.stage-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 8px;
}
.stage-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}
.stage-legend i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}
.coverage-item {
  min-width: 0;
  background: var(--card-bg);
  border: 1px solid var(--track-color);
  border-radius: var(--radius-md);
  padding: 14px;
}
.coverage-item > div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}
.coverage-item span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}
.coverage-item strong {
  text-align: right;
  font-size: 0.92rem;
}
.coverage-meter {
  height: 7px;
  margin: 12px 0 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--track-color);
}
.coverage-meter i {
  display: block;
  height: 100%;
  border-radius: inherit;
}
.coverage-item p {
  color: var(--muted);
  font-size: 0.74rem;
}

/* ACTIVITIES */
.activity-summary { padding: 16px; border-bottom: 1px solid var(--track-color); display: flex; flex-direction: column; }
.activity-summary strong { font-size: 1.1rem; }
.activity-summary span { font-size: 0.8rem; margin-top: 4px; }
.activity {
  padding: 16px; display: flex; align-items: center; border-bottom: 1px solid var(--track-color); cursor: pointer;
}
.activity:last-child { border-bottom: none; }
.activity:hover { background: var(--card-bg); }
.score-pill {
  width: 44px; height: 44px; border-radius: 50%; background: rgba(16, 255, 152, 0.15); color: var(--teal);
  font-weight: 800; display: flex; align-items: center; justify-content: center; margin-right: 16px;
  border: 2px solid var(--teal);
}
.activity-main { flex: 1; display: flex; flex-direction: column; }
.activity-main strong { font-size: 1rem; }
.activity-main span { font-size: 0.8rem; color: var(--muted); margin-top: 2px;}

.analysis-actions {
  padding: 16px;
  display: grid;
  gap: 10px;
}
.analysis-actions p {
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.45;
  background: var(--card-bg);
  border: 1px solid var(--track-color);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.validation-meta,
.validation-list {
  padding: 16px;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--track-color);
}
.validation-meta span {
  color: var(--muted);
  font-size: 0.8rem;
}
.validation-list p {
  border: 1px solid var(--track-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.82rem;
  line-height: 1.45;
}
.validation-list .ok {
  border-color: rgba(16, 255, 152, 0.35);
  color: var(--teal);
}
.validation-list .warning {
  border-color: rgba(255, 214, 10, 0.35);
  color: var(--yellow);
}
.validation-list .error {
  border-color: rgba(255, 59, 59, 0.35);
  color: var(--orange);
}

/* FORMS/INPUTS */
.input-group { display: flex; flex-direction: column; flex: 1; }
.input-group label { font-size: 0.75rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; }
.input-row { display: flex; gap: 12px; }
input {
  background: var(--card-bg); border: 1px solid var(--track-color);
  color: var(--text); padding: 12px 14px; border-radius: var(--radius-sm);
  font-family: inherit; font-size: 0.95rem; font-weight: 500;
  transition: border-color 0.2s; outline: none; width: 100%;
}
input:focus { border-color: var(--teal); }

/* WATCHFACES & WEATHER */
.weather-current { background: var(--card-bg); margin: 0 16px; border-radius: var(--radius-md); }
.forecast-strip { display: flex; padding: 16px; gap: 10px; overflow-x: auto; background: var(--card-bg); margin: 0 16px 16px; border-radius: var(--radius-md); }
.forecast-day { flex: 1; min-width: 60px; display: flex; flex-direction: column; align-items: center; background: var(--panel-bg); padding: 12px 8px; border-radius: 8px;}
.forecast-day span { font-size: 0.7rem; font-weight: 700; color: var(--muted); text-transform: uppercase; margin-bottom: 6px;}
.forecast-day strong { font-size: 0.85rem; }

.watchface-row { display: flex; align-items: center; justify-content: space-between; padding: 16px; border-bottom: 1px solid var(--track-color); }
.watchface-row:last-child { border-bottom: none; }
.watchface-row div { display: flex; flex-direction: column; }
.watchface-row strong { font-size: 0.95rem; }
.watchface-row span { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }
.compact { padding: 4px 12px; font-size: 0.75rem; }

.command-log {
  display: grid;
}
.command-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--track-color);
}
.command-row:last-child {
  border-bottom: none;
}
.command-row div {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.command-row strong,
.command-row b {
  font-size: 0.88rem;
}
.command-row span {
  color: var(--muted);
  font-size: 0.74rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.command-row b {
  color: var(--teal);
  text-align: right;
}
.command-row.error b,
.command-row.failed b {
  color: var(--orange);
}
.command-row.running b,
.command-row.queued b {
  color: var(--yellow);
}

/* TOAST */
.toast {
  position: fixed; top: calc(20px + var(--safe-top)); left: 50%; transform: translateX(-50%);
  background: var(--teal); color: #000; padding: 10px 20px;
  border-radius: 20px; font-weight: 700; font-size: 0.85rem;
  z-index: 1000; box-shadow: 0 8px 16px rgba(0,0,0,0.4);
  animation: slideDown 0.3s ease forwards;
}
@keyframes slideDown { from { top: -20px; opacity: 0; } to { top: calc(20px + var(--safe-top)); opacity: 1; } }

/* BOTTOM TAB NAVIGATION */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: flex; justify-content: space-around;
  padding-bottom: var(--safe-bottom);
  background: rgba(18, 18, 20, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255,255,255,0.05);
  z-index: 100;
}

.nav-tab {
  flex: 1; padding: 10px 0 12px;
  display: flex; flex-direction: column; align-items: center;
  background: none; color: var(--muted);
}
.nav-tab svg { margin-bottom: 6px; stroke-width: 2.5; transition: transform 0.2s, stroke 0.2s; }
.nav-tab span { font-size: 0.65rem; font-weight: 700; }
.nav-tab.active { color: #fff; }
.nav-tab.active svg { stroke: var(--text); transform: scale(1.1); }

@media (max-width: 380px) {
  .app-container {
    padding: 0 12px;
  }

  .ring-row {
    gap: 8px;
  }

  .ring-card svg {
    width: 92px;
    height: 92px;
  }

  .input-row {
    flex-direction: column;
  }

  .nav-tab span {
    font-size: 0.6rem;
  }

  .signal-grid,
  .load-grid,
  .coverage-grid {
    grid-template-columns: 1fr;
  }
}