:root {
  --bg:       #0f1117;
  --surface:  #1a1d2e;
  --surface2: #252840;
  --accent:   #e8383d;
  --accent2:  #ff6b35;
  --text:     #f0f0f5;
  --text2:    #a0a0b0;
  --green:    #38a169;
  --yellow:   #d69e2e;
  --blue:     #3182ce;
  --border:   #2d3050;
  --radius:   12px;
  --shadow:   0 2px 12px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  min-height: 100vh;
  overscroll-behavior: none;
}

/* ── Header ──────────────────────────────────────────────────── */
#app-header {
  background: var(--surface);
  border-bottom: 2px solid var(--accent);
  padding: 14px 16px 12px;
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 12px;
}
#app-header .logo { font-size: 22px; font-weight: 800; color: var(--accent); letter-spacing: -0.5px; }
#app-header .subtitle { font-size: 12px; color: var(--text2); }
#back-btn {
  background: none; border: none; color: var(--text2);
  font-size: 22px; cursor: pointer; padding: 4px 8px 4px 0;
  display: none;
}
#header-title { flex: 1; font-weight: 700; font-size: 16px; }

/* ── Rain Warning Banner ──────────────────────────────────────── */
#rain-banner {
  background: linear-gradient(135deg, #1a3a5c, #0d2137);
  border-bottom: 2px solid #3182ce;
  padding: 10px 16px;
  display: none;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
}
#rain-banner.warning {
  background: linear-gradient(135deg, #3d1a1a, #2d0f0f);
  border-color: var(--accent);
  display: flex;
}
#rain-banner .rain-icon { font-size: 24px; }

/* ── Screens ──────────────────────────────────────────────────── */
.screen { display: none; padding: 16px; }
.screen.active { display: block; }

/* ── Track List ──────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.section-header h2 { font-size: 18px; font-weight: 700; }
.filter-bar {
  position: relative; margin-bottom: 14px;
}
.filter-bar input {
  width: 100%; padding: 10px 14px 10px 38px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 15px;
}
.filter-bar::before { content: "🔍"; position: absolute; left: 12px; top: 10px; font-size: 16px; }

.country-group { margin-bottom: 20px; }
.country-label {
  font-size: 11px; font-weight: 700; color: var(--text2);
  text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 8px; padding-left: 4px;
}
.track-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
  margin-bottom: 8px; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  transition: border-color 0.2s, background 0.2s;
  -webkit-user-select: none;
}
.track-card:active { background: var(--surface2); border-color: var(--accent); }
.track-card .track-name { font-weight: 700; font-size: 15px; }
.track-card .track-loc  { font-size: 12px; color: var(--text2); margin-top: 2px; }
.track-card .track-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.track-card .setup-count { font-size: 12px; color: var(--text2); }
.track-card .chevron { font-size: 16px; color: var(--text2); margin-left: 8px; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 20px; border-radius: var(--radius); border: none;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: opacity 0.15s;
  -webkit-user-select: none;
}
.btn:active { opacity: 0.75; }
.btn-primary  { background: var(--accent);   color: #fff; }
.btn-secondary{ background: var(--surface2); color: var(--text); }
.btn-success  { background: var(--green);    color: #fff; }
.btn-danger   { background: #9b2c2c;         color: #fff; }
.btn-timing   { background: #7b1f22; color: #fff; border: 1px solid #e8383d44; letter-spacing: 0.02em; }
.btn-timing:hover { background: #9b2c2c; }
.btn-full     { width: 100%; }
.btn-sm       { padding: 8px 14px; font-size: 13px; }

/* ── Setup List ──────────────────────────────────────────────── */
.setup-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
  margin-bottom: 10px; cursor: pointer;
}
.setup-card:active { background: var(--surface2); }
.setup-card .setup-date  { font-size: 12px; color: var(--text2); }
.setup-card .setup-title { font-weight: 700; font-size: 15px; margin: 3px 0; }
.setup-card .setup-tags  { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 11px; padding: 3px 8px; border-radius: 20px;
  background: var(--surface2); color: var(--text2); font-weight: 600;
}
.tag.wet      { background: #1a3a5c; color: #63b3ed; }
.tag.dry      { background: #1a3a1a; color: #68d391; }
.tag.race     { background: #3d1a1a; color: #fc8181; }
.tag.qualify  { background: #3d2a1a; color: #fbd38d; }
.tag.practice { background: #1a2a3a; color: #90cdf4; }

/* ── Forms ──────────────────────────────────────────────────── */
.form-section {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 14px;
}
.form-section h3 {
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--accent); margin-bottom: 14px; font-weight: 700;
}
.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 13px; color: var(--text2); margin-bottom: 6px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; padding: 11px 13px; color: var(--text); font-size: 15px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
}
.field textarea { min-height: 80px; resize: vertical; }
.field select option { background: var(--surface2); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

/* ── Weather Widget ──────────────────────────────────────────── */
#weather-widget {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px;
}
.weather-main { display: flex; align-items: center; gap: 12px; }
.weather-icon { font-size: 36px; }
.weather-temp { font-size: 28px; font-weight: 800; }
.weather-desc { font-size: 13px; color: var(--text2); }
.weather-details {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 8px; margin-top: 12px; padding-top: 12px;
  border-top: 1px solid var(--border);
}
.weather-detail { text-align: center; }
.weather-detail .val { font-size: 16px; font-weight: 700; }
.weather-detail .lbl { font-size: 11px; color: var(--text2); }
.rain-timeline { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.rain-timeline h4 { font-size: 12px; color: var(--text2); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
.rain-bars { display: flex; gap: 4px; align-items: flex-end; height: 40px; }
.rain-bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.rain-bar { width: 100%; border-radius: 3px 3px 0 0; min-height: 3px; transition: height 0.3s; }
.rain-bar-label { font-size: 9px; color: var(--text2); }

/* ── Carb Calc ──────────────────────────────────────────────── */
.carb-result {
  border-radius: var(--radius); padding: 20px; text-align: center;
  margin-bottom: 14px;
}
.carb-result .jet-size { font-size: 48px; font-weight: 800; }
.carb-result .jet-label { font-size: 16px; font-weight: 700; margin: 4px 0; }
.carb-result .jet-note { font-size: 13px; opacity: 0.85; }
.carb-detail-row {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; margin-bottom: 10px;
}
.carb-detail-row .carb-label { font-size: 12px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.carb-detail-row .carb-val   { font-size: 16px; font-weight: 700; margin-top: 4px; }
.carb-detail-row .carb-note  { font-size: 12px; color: var(--text2); margin-top: 3px; }

/* ── Setup Detail ──────────────────────────────────────────────── */
.detail-section {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px;
}
.detail-section h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--accent); margin-bottom: 12px; font-weight: 700;
}
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.detail-item .lbl { font-size: 11px; color: var(--text2); }
.detail-item .val { font-size: 15px; font-weight: 600; margin-top: 1px; }
.detail-item.full,
.detail-item-full { grid-column: 1 / -1; }

/* ── Bottom nav ──────────────────────────────────────────────── */
#bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--surface); border-top: 1px solid var(--border);
  display: flex; z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-item {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  padding: 10px 4px 8px; gap: 3px; cursor: pointer;
  color: var(--text2); font-size: 10px; font-weight: 600;
  transition: color 0.15s; border: none; background: none;
  -webkit-user-select: none;
}
.nav-item.active { color: var(--accent); }
.nav-item .nav-icon { font-size: 22px; }

/* ── Misc ──────────────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 48px 20px; color: var(--text2);
}
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }
.fab {
  position: fixed; right: 20px;
  bottom: calc(72px + env(safe-area-inset-bottom));
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: 28px;
  border: none; box-shadow: var(--shadow); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 99;
}
.fab:active { opacity: 0.8; }
.status-online  { color: var(--green);  font-size: 11px; font-weight: 600; }
.status-offline { color: var(--yellow); font-size: 11px; font-weight: 600; }

body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }

input[type=number] { -moz-appearance: textfield; }
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; }

.alert-banner {
  background: #1a3a1a; border: 1px solid var(--green);
  border-radius: var(--radius); padding: 12px 14px;
  font-size: 13px; margin-bottom: 14px; color: #c6f6d5;
}
.alert-banner.warn {
  background: #3d2a1a; border-color: var(--yellow); color: #fefcbf;
}