/* ============================================================
   THEMES
   ============================================================ */

/* -------- DARK: Ocean (default) -------- */
:root,
html[data-theme="ocean"] {
  color-scheme: dark;
  --bg: #05060a; --bg-2: #0c0f18;
  --panel: #11141f; --panel-2: #171b2a;
  --border: #232a3d; --border-2: #2f3a55;
  --text: #e8ecf5; --text-dim: #7e8aa3;

  --primary: #2f7bff; --primary-2: #5aa0ff; --primary-dim: #1a3a7a;
  --danger:  #ff3b52; --danger-2:  #ff6b7d; --danger-dim:  #7a1a2a;
  --success: #22c55e;

  --c-fuel:     #2f7bff;
  --c-maint:    #ff3b52;
  --c-total:    #8b5cf6;
  --c-mileage:  #14b8a6;
  --c-distance: #f59e0b;
  --c-refuels:  #ec4899;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* -------- DARK: Ember -------- */
html[data-theme="ember"] {
  color-scheme: dark;
  --bg: #0a0605; --bg-2: #160d0a;
  --panel: #1a100c; --panel-2: #22150f;
  --border: #3a2218; --border-2: #4d2c1e;
  --text: #f5ebe6; --text-dim: #a38579;

  --primary: #ff6a00; --primary-2: #ff8c33; --primary-dim: #7a3300;
  --danger:  #e11d48; --danger-2:  #f43f5e; --danger-dim:  #7a0e26;
  --success: #22c55e;

  --c-fuel:     #ff6a00;
  --c-maint:    #e11d48;
  --c-total:    #d946ef;
  --c-mileage:  #22c55e;
  --c-distance: #eab308;
  --c-refuels:  #f43f5e;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* -------- DARK: Neon -------- */
html[data-theme="neon"] {
  color-scheme: dark;
  --bg: #05030a; --bg-2: #0d0818;
  --panel: #120b20; --panel-2: #1a1129;
  --border: #2b1d44; --border-2: #3d2a5c;
  --text: #ede6f5; --text-dim: #8c7ba3;

  --primary: #a855f7; --primary-2: #c084fc; --primary-dim: #4a1e7a;
  --danger:  #ec4899; --danger-2:  #f472b6; --danger-dim:  #7a1a4a;
  --success: #10b981;

  --c-fuel:     #a855f7;
  --c-maint:    #ec4899;
  --c-total:    #06b6d4;
  --c-mileage:  #10b981;
  --c-distance: #facc15;
  --c-refuels:  #f97316;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* -------- LIGHT: Daylight -------- */
html[data-theme="daylight"] {
  color-scheme: light;
  --bg: #f5f7fb; --bg-2: #ffffff;
  --panel: #ffffff; --panel-2: #f0f3f9;
  --border: #e2e8f0; --border-2: #cbd5e1;
  --text: #0f172a; --text-dim: #64748b;

  --primary: #2563eb; --primary-2: #3b82f6; --primary-dim: #93b4f5;
  --danger:  #dc2626; --danger-2:  #ef4444; --danger-dim:  #f5b5b5;
  --success: #16a34a;

  --c-fuel:     #2563eb;
  --c-maint:    #dc2626;
  --c-total:    #7c3aed;
  --c-mileage:  #0d9488;
  --c-distance: #ea580c;
  --c-refuels:  #db2777;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* -------- LIGHT: Sunrise -------- */
html[data-theme="sunrise"] {
  color-scheme: light;
  --bg: #fdf7f2; --bg-2: #ffffff;
  --panel: #ffffff; --panel-2: #fbf1e8;
  --border: #f0e0d0; --border-2: #e6cdb3;
  --text: #2a1810; --text-dim: #8a6d55;

  --primary: #ea580c; --primary-2: #f97316; --primary-dim: #fbc59a;
  --danger:  #c026d3; --danger-2:  #d946ef; --danger-dim:  #eeb0f0;
  --success: #16a34a;

  --c-fuel:     #ea580c;
  --c-maint:    #c026d3;
  --c-total:    #0891b2;
  --c-mileage:  #16a34a;
  --c-distance: #ca8a04;
  --c-refuels:  #e11d48;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* -------- LIGHT: Mint -------- */
html[data-theme="mint"] {
  color-scheme: light;
  --bg: #f2faf6; --bg-2: #ffffff;
  --panel: #ffffff; --panel-2: #ebf7f0;
  --border: #d5ebe0; --border-2: #b8dcc9;
  --text: #0a1f17; --text-dim: #5c8071;

  --primary: #059669; --primary-2: #10b981; --primary-dim: #7ed4b5;
  --danger:  #d97706; --danger-2:  #f59e0b; --danger-dim:  #f5c98a;
  --success: #16a34a;

  --c-fuel:     #059669;
  --c-maint:    #d97706;
  --c-total:    #7c3aed;
  --c-mileage:  #0891b2;
  --c-distance: #ea580c;
  --c-refuels:  #db2777;

  --accent: var(--primary);
  --accent-2: var(--primary-2);
}

/* Shared tokens */
:root {
  --radius:    14px;
  --radius-sm: 10px;
  --shadow:    0 8px 28px rgba(0,0,0,.12);
  --shadow-sm: 0 2px 10px rgba(0,0,0,.06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
html[data-theme="ocean"],
html[data-theme="ember"],
html[data-theme="neon"] {
  --shadow: 0 8px 28px rgba(0,0,0,.55);
  --shadow-sm: 0 2px 10px rgba(0,0,0,.4);
}

html, body, .topbar, .panel, .card, .btn, .form-grid input, .form-grid select,
.mobile-nav, .footer, .empty-state, .history-table th, .page-tab, .edit-banner,
.month-card, .modal-content, .modal-summary-card, .hero-panel, .lifetime-card,
.quick-add-btn, .insight-row, .theme-menu, .theme-menu-item {
  transition: background-color .35s ease, color .35s ease,
              border-color .35s ease, box-shadow .35s ease;
}

/* ===== Base ===== */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background:
    radial-gradient(900px 500px at 90% -10%, color-mix(in srgb, var(--primary) 14%, transparent) 0%, transparent 60%),
    radial-gradient(700px 400px at -10% 20%, color-mix(in srgb, var(--danger) 8%, transparent) 0%, transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh; min-height: 100dvh;
  display: flex; flex-direction: column;
  font-size: 15px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.hidden { display: none !important; }
.accent { color: var(--primary-2); }
img { max-width: 100%; display: block; }

/* ===== Topbar ===== */
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 12px 16px;
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 18px; letter-spacing: .3px; }
.brand-icon { font-size: 22px; }
.auth-area { display: flex; align-items: center; gap: 8px; }
.user-info { display: flex; align-items: center; gap: 10px; }
.user-info img { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 15%, transparent); }
#user-name { font-size: 13px; color: var(--text-dim); max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Theme picker ===== */
.theme-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border-2);
  border-radius: 999px;
  color: var(--text);
  font-size: 12px; font-weight: 700; font-family: inherit;
  cursor: pointer; min-height: 40px;
  transition: transform .12s ease, border-color .15s ease, box-shadow .15s ease;
}
.theme-btn:hover { border-color: var(--primary); }
.theme-btn:active { transform: scale(.97); }
.theme-btn[aria-expanded="true"] {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}
.theme-btn-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--danger));
  box-shadow: 0 0 8px var(--primary);
  flex-shrink: 0;
}
.theme-btn-label { letter-spacing: .4px; }

/* Theme dropdown — fixed to viewport, opens downward under topbar */
.theme-menu {
  position: fixed;
  top: 70px;
  right: 14px;
  width: 320px;
  max-width: calc(100vw - 28px);
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px;
  z-index: 200;
  animation: menuIn .16s ease-out;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
@keyframes menuIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}
.theme-menu-header {
  font-size: 11px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--text-dim); font-weight: 700;
  padding: 4px 6px 10px;
}
.theme-menu-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.theme-menu-item {
  position: relative;
  display: flex; flex-direction: column; gap: 8px;
  padding: 10px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer; text-align: left;
  font-family: inherit; color: var(--text);
  transition: transform .12s ease, border-color .15s ease, background .15s ease;
}
.theme-menu-item:hover { transform: translateY(-1px); border-color: var(--primary-dim); }
.theme-menu-item.is-active {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, var(--bg-2));
}
.theme-menu-item.is-active::after {
  content: "✓";
  position: absolute;
  top: 8px; right: 10px;
  font-size: 12px; font-weight: 800;
  color: var(--primary);
}
.theme-menu-swatches { display: flex; gap: 5px; align-items: center; }
.theme-menu-swatch {
  width: 18px; height: 18px; border-radius: 6px;
  border: 1px solid rgba(0,0,0,.15); flex-shrink: 0;
}
.theme-menu-meta {
  display: flex; align-items: baseline; justify-content: space-between; gap: 6px;
}
.theme-menu-name { font-size: 13px; font-weight: 800; letter-spacing: .2px; color: var(--text); }
.theme-menu-badge {
  font-size: 9px; text-transform: uppercase; letter-spacing: .8px;
  font-weight: 700; padding: 2px 6px; border-radius: 4px;
}
.theme-menu-badge.mode-dark  { background: rgba(255,255,255,.1); color: var(--text-dim); }
.theme-menu-badge.mode-light { background: rgba(0,0,0,.08);     color: var(--text-dim); }

/* ===== Page tabs ===== */
.page-tabs { display: flex; gap: 6px; padding: 10px 14px 0; max-width: 1100px; margin: 0 auto; width: 100%; overflow-x: auto; scrollbar-width: none; }
.page-tabs::-webkit-scrollbar { display: none; }
.page-tab {
  flex: 1; min-width: 100px;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  color: var(--text-dim);
  font-size: 13px; font-weight: 700; font-family: inherit;
  cursor: pointer; letter-spacing: .4px; min-height: 46px;
  transition: color .15s, background .15s, border-color .15s;
}
.page-tab:hover { color: var(--text); }
.page-tab.is-active {
  color: var(--text);
  background: var(--panel-2);
  border-color: var(--primary);
  border-bottom-color: var(--panel-2);
  box-shadow: 0 -3px 0 var(--primary) inset;
}

/* ===== Buttons ===== */
.btn {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 11px 18px;
  font-size: 14px; font-weight: 700;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary { background: linear-gradient(180deg, var(--primary-2), var(--primary)); color: #fff; box-shadow: 0 6px 20px color-mix(in srgb, var(--primary) 35%, transparent); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-danger  { background: linear-gradient(180deg, var(--danger-2), var(--danger)); color: #fff; box-shadow: 0 6px 20px color-mix(in srgb, var(--danger) 32%, transparent); }
.btn-danger:hover { filter: brightness(1.06); }
.btn-secondary { background: var(--panel-2); color: var(--text); border-color: var(--border-2); }
.btn-secondary:hover { background: color-mix(in srgb, var(--panel-2) 80%, var(--primary) 20%); border-color: var(--primary-dim); }
.btn-ghost { background: transparent; color: var(--text-dim); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--border-2); }

/* ===== Layout ===== */
.container { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 20px 14px 40px; }
.page { display: flex; flex-direction: column; gap: 20px; }
.section-title { font-size: 12px; text-transform: uppercase; letter-spacing: 1.6px; color: var(--text-dim); margin: 0 0 12px; font-weight: 700; }

/* HERO */
.hero-panel {
  position: relative;
  background:
    radial-gradient(600px 300px at 100% -20%, color-mix(in srgb, var(--primary) 30%, transparent) 0%, transparent 60%),
    linear-gradient(155deg, var(--panel-2), var(--panel));
  border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border));
  overflow: hidden;
}
.hero-panel::before {
  content: "";
  position: absolute; inset: 0 auto 0 0; width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--danger));
}
.hero-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 12px; margin-bottom: 16px; position: relative; z-index: 1;
}
.hero-eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: 1.4px; color: var(--text-dim); font-weight: 700; margin-bottom: 2px; }
.hero-title {
  font-size: 22px; font-weight: 800; letter-spacing: -.3px;
  background: linear-gradient(90deg, var(--text), var(--primary-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-head .btn { min-height: 38px; padding: 8px 14px; font-size: 12px; flex-shrink: 0; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; position: relative; z-index: 1; }
.hero-stat {
  background: color-mix(in srgb, var(--bg-2) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px; min-width: 0;
}
.hero-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: .9px; color: var(--text-dim); font-weight: 700; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero-stat-value { font-size: 17px; font-weight: 800; letter-spacing: -.2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero-stat-value.stat-cost   { color: var(--c-total); }
.hero-stat-value.stat-km     { color: var(--c-distance); }
.hero-stat-value.stat-petrol { color: var(--c-fuel); }

.hero-foot { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; position: relative; z-index: 1; }
.hero-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: .3px;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid var(--primary-dim);
  color: var(--primary-2);
}
.hero-chip.is-positive { background: color-mix(in srgb, var(--success) 14%, transparent); border-color: color-mix(in srgb, var(--success) 40%, transparent); color: var(--success); }
.hero-chip.is-negative { background: color-mix(in srgb, var(--danger) 14%, transparent); border-color: color-mix(in srgb, var(--danger) 40%, transparent); color: var(--danger-2); }

/* LIFETIME */
.lifetime-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.lifetime-card {
  background: linear-gradient(155deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  position: relative; overflow: hidden;
}
.lifetime-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--primary); }
.lifetime-icon { font-size: 20px; margin-bottom: 6px; line-height: 1; }
.lifetime-label { font-size: 10px; text-transform: uppercase; letter-spacing: .9px; color: var(--text-dim); font-weight: 700; margin-bottom: 4px; }
.lifetime-value { font-size: 20px; font-weight: 800; letter-spacing: -.3px; }

/* QUICK ADD */
.quick-add-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.quick-add-btn {
  display: flex; align-items: center; gap: 12px;
  text-align: left; padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border-2);
  background: var(--panel-2);
  color: var(--text); font-family: inherit;
  cursor: pointer; min-height: 68px;
  transition: transform .12s ease, border-color .15s ease, background .15s ease, box-shadow .2s ease;
}
.quick-add-btn:hover { transform: translateY(-2px); }
.quick-add-btn:active { transform: scale(.985); }
.quick-add-refuel {
  background: linear-gradient(135deg, color-mix(in srgb, var(--c-fuel) 20%, var(--panel-2)), var(--panel-2));
  border-color: color-mix(in srgb, var(--c-fuel) 40%, var(--border-2));
}
.quick-add-refuel:hover { box-shadow: 0 8px 24px color-mix(in srgb, var(--c-fuel) 30%, transparent); }
.quick-add-refuel .quick-add-icon { color: var(--c-fuel); }
.quick-add-maint {
  background: linear-gradient(135deg, color-mix(in srgb, var(--c-maint) 20%, var(--panel-2)), var(--panel-2));
  border-color: color-mix(in srgb, var(--c-maint) 40%, var(--border-2));
}
.quick-add-maint:hover { box-shadow: 0 8px 24px color-mix(in srgb, var(--c-maint) 30%, transparent); }
.quick-add-maint .quick-add-icon { color: var(--c-maint); }
.quick-add-icon { font-size: 24px; line-height: 1; flex-shrink: 0; }
.quick-add-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.quick-add-text strong { font-size: 14px; font-weight: 800; }
.quick-add-text small { font-size: 11px; color: var(--text-dim); }

/* INSIGHTS */
.insights-list { display: flex; flex-direction: column; gap: 8px; }
.insight-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.insight-icon {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
  background: var(--panel-2); border: 1px solid var(--border-2);
}
.insight-icon-maint { background: color-mix(in srgb, var(--c-maint) 15%, var(--panel-2)); border-color: color-mix(in srgb, var(--c-maint) 35%, var(--border)); }
.insight-icon-fuel  { background: color-mix(in srgb, var(--c-fuel) 15%, var(--panel-2)); border-color: color-mix(in srgb, var(--c-fuel) 35%, var(--border)); }
.insight-icon-service { background: color-mix(in srgb, var(--c-total) 15%, var(--panel-2)); border-color: color-mix(in srgb, var(--c-total) 35%, var(--border)); }
.insight-body { min-width: 0; flex: 1; }
.insight-title { font-size: 11px; text-transform: uppercase; letter-spacing: .9px; color: var(--text-dim); font-weight: 700; margin-bottom: 2px; }
.insight-text { font-size: 13px; font-weight: 600; color: var(--text); word-break: break-word; }

/* MONTH CARDS */
.months-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.month-card {
  position: relative; text-align: left; cursor: pointer;
  border: 1px solid var(--border);
  background: linear-gradient(155deg, var(--panel-2), var(--panel));
  border-radius: var(--radius);
  padding: 16px; overflow: hidden;
  font-family: inherit; color: var(--text);
  transition: transform .15s ease, border-color .2s ease, box-shadow .25s ease;
}
.month-card:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: 0 10px 26px color-mix(in srgb, var(--primary) 22%, transparent); }
.month-card:active { transform: scale(.985); }
.month-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: linear-gradient(180deg, var(--primary), var(--danger)); }
.month-card::after { content: ""; position: absolute; top: -50px; right: -50px; width: 130px; height: 130px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--primary) 30%, transparent) 0%, transparent 70%); pointer-events: none; }
.month-card-header { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 12px; position: relative; z-index: 1; }
.month-card-name { font-size: 15px; font-weight: 800; letter-spacing: .2px; }
.month-card-count { font-size: 11px; color: var(--text-dim); font-weight: 600; text-transform: uppercase; letter-spacing: .8px; }
.month-card-stats { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; position: relative; z-index: 1; }
.month-stat { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.month-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: .8px; color: var(--text-dim); font-weight: 700; }
.month-stat-value { font-size: 15px; font-weight: 800; letter-spacing: -.2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.month-stat.stat-cost   .month-stat-value { color: var(--c-total); }
.month-stat.stat-km     .month-stat-value { color: var(--c-distance); }
.month-stat.stat-petrol .month-stat-value { color: var(--c-fuel); }

/* MODAL */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.modal-content {
  position: relative; width: 100%; max-width: 720px; max-height: 90vh;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; overflow: hidden;
  animation: modalIn .22s ease-out;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(.98); }
  to   { opacity: 1; transform: none; }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}
.modal-header h3 { margin: 0; font-size: 16px; font-weight: 800; letter-spacing: .2px; }
.modal-close { min-height: 36px; min-width: 36px; padding: 0; font-size: 14px; }
.modal-body { padding: 16px 18px 22px; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.modal-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.modal-summary-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; text-align: center; }
.modal-summary-label { font-size: 10px; text-transform: uppercase; letter-spacing: .9px; color: var(--text-dim); font-weight: 700; margin-bottom: 4px; }
.modal-summary-value { font-size: 18px; font-weight: 800; }
.modal-section-title { font-size: 11px; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-dim); font-weight: 700; margin: 16px 0 8px; }

/* PANELS */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm); }

/* FORMS */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; align-items: end; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--text-dim); font-weight: 600; letter-spacing: .3px; }
.form-grid input, .form-grid select {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 12px 14px;
  font-size: 16px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit; width: 100%; min-height: 46px;
  appearance: none; -webkit-appearance: none;
}
.form-grid input[readonly] { color: var(--primary-2); font-weight: 700; background: color-mix(in srgb, var(--primary) 8%, var(--bg-2)); border-color: var(--primary-dim); }
.form-grid select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 13px) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat; padding-right: 34px;
}
.form-grid input:focus, .form-grid select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent); }
.checkbox-label { flex-direction: row !important; align-items: center; gap: 10px !important; min-height: 46px; padding: 0 2px; cursor: pointer; }
.checkbox-label input { accent-color: var(--primary); width: 20px; height: 20px; min-height: 20px; padding: 0; cursor: pointer; }
.span-2 { grid-column: span 2; }

.field-hint { font-size: 12px; color: var(--text-dim); margin: -4px 0 14px; line-height: 1.5; }
.field-hint strong { color: var(--primary-2); }
.hint { color: var(--primary-2); font-size: 11px; font-weight: 700; }

.form-msg { font-size: 13px; min-height: 20px; padding: 4px 2px 0; }
.form-msg.ok    { color: var(--success); }
.form-msg.error { color: var(--danger); }

.calc-result { grid-column: 1 / -1; background: var(--bg-2); border: 1px dashed var(--border-2); border-radius: var(--radius-sm); padding: 14px; font-size: 14px; color: var(--text-dim); line-height: 1.6; }
.calc-result strong { color: var(--primary-2); }
.calc-result .calc-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px dashed color-mix(in srgb, var(--border-2) 60%, transparent); }
.calc-result .calc-row:last-child { border-bottom: none; padding-top: 8px; font-size: 15px; }

.edit-banner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 14px; margin: 0 0 14px;
  background: color-mix(in srgb, var(--primary) 12%, var(--panel-2));
  border: 1px solid var(--primary-dim);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
}
.edit-banner-text { font-size: 13px; font-weight: 700; color: var(--primary-2); }
.edit-banner .btn { min-height: 34px; padding: 6px 12px; font-size: 12px; }

.export-block { padding: 14px 0; border-top: 1px dashed var(--border-2); }
.export-block:first-of-type { border-top: none; padding-top: 0; }
.export-block:last-of-type { padding-bottom: 0; }
.export-block-title { font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 10px; }

/* TABLES */
.table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-sm); border: 1px solid var(--border); scrollbar-width: thin; scrollbar-color: var(--border-2) transparent; }
.table-scroll::-webkit-scrollbar { height: 8px; }
.table-scroll::-webkit-scrollbar-track { background: transparent; }
.table-scroll::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 4px; }

.history-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
.history-table th, .history-table td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.history-table th { color: var(--text-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; font-weight: 700; background: var(--bg-2); position: sticky; top: 0; z-index: 1; }
.history-table tbody tr:last-child td { border-bottom: none; }
.history-table tbody tr:hover { background: color-mix(in srgb, var(--primary) 6%, transparent); }
.history-table td:nth-child(4), .history-table td:nth-child(5) { color: var(--primary-2); font-weight: 600; }
.row-actions { display: flex; gap: 6px; }
.row-actions .btn { min-height: 32px; padding: 4px 10px; font-size: 13px; }

.empty-state { color: var(--text-dim); font-size: 13px; padding: 18px; border: 1px dashed var(--border-2); border-radius: var(--radius-sm); text-align: center; }

.chart-wrap { position: relative; height: 260px; width: 100%; }
.chart-legend { display: flex; gap: 18px; justify-content: center; margin-top: 14px; font-size: 12px; color: var(--text-dim); }
.chart-legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: middle; box-shadow: 0 0 8px currentColor; }
.dot-fuel  { background: var(--c-fuel);  color: var(--c-fuel); }
.dot-maint { background: var(--c-maint); color: var(--c-maint); }

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

.install-banner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin: 12px 14px 0; padding: 12px 14px;
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--primary-dim);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--primary) 18%, transparent);
}
.install-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.install-text strong { font-size: 14px; }
.install-text span { font-size: 12px; color: var(--text-dim); }
.install-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.install-actions .btn { min-height: 38px; padding: 8px 14px; font-size: 13px; }

.mobile-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  padding: 6px 6px calc(6px + env(safe-area-inset-bottom, 0px));
  gap: 4px; z-index: 40;
}
.mobile-nav-btn {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 6px 4px;
  background: transparent; border: none;
  color: var(--text-dim); text-decoration: none;
  font-size: 11px; font-weight: 600; font-family: inherit;
  border-radius: var(--radius-sm);
  min-height: 56px; cursor: pointer; position: relative;
  transition: background .15s, color .15s;
}
.mobile-nav-btn:active { background: var(--panel-2); color: var(--primary-2); }
.mobile-nav-btn.is-active { color: var(--primary-2); background: color-mix(in srgb, var(--primary) 10%, transparent); }
.mobile-nav-btn.is-active::before {
  content: ""; position: absolute; top: -6px; left: 50%; transform: translateX(-50%);
  width: 28px; height: 3px; border-radius: 0 0 3px 3px; background: var(--primary);
}
.mobile-nav-icon { font-size: 20px; line-height: 1; }

.footer { text-align: center; padding: 18px 14px; color: var(--text-dim); font-size: 12px; border-top: 1px solid var(--border); margin-top: 20px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 700px) {
  body { font-size: 14px; line-height: 1.55; }

  .topbar { padding: 10px 14px; padding-top: calc(10px + env(safe-area-inset-top, 0px)); gap: 8px; }
  .brand { font-size: 17px; gap: 6px; }
  .brand-icon { font-size: 19px; }
  .auth-area { gap: 6px; }
  #user-name { display: none; }
  .user-info { gap: 8px; }
  .user-info img { width: 34px; height: 34px; }
  .btn { padding: 10px 14px; font-size: 13px; }
  .theme-btn { padding: 7px 10px; min-height: 38px; }
  .theme-btn-label { display: none; }
  .theme-btn-dot { width: 16px; height: 16px; }

  /* Theme menu — anchored right under the topbar; opens downward so it can't hide above */
  .theme-menu {
    position: fixed;
    top: 62px;
    right: 8px;
    left: 8px;
    width: auto;
    max-width: none;
    border-radius: var(--radius);
    padding: 12px;
    max-height: calc(100dvh - 80px - env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .theme-menu-list { grid-template-columns: 1fr 1fr; gap: 8px; }
  .theme-menu-item { padding: 10px 12px; gap: 6px; }
  .theme-menu-name { font-size: 12px; }
  .theme-menu-swatch { width: 16px; height: 16px; }

  .page-tabs { display: none; }
  .container { padding: 12px 12px calc(84px + env(safe-area-inset-bottom, 0px)); }
  .page { gap: 14px; }

  .panel { padding: 14px; border-radius: 12px; }
  .section-title { font-size: 11px; letter-spacing: 1.4px; margin-bottom: 10px; }

  .hero-panel { padding: 16px 14px; }
  .hero-head { flex-direction: column; align-items: stretch; gap: 10px; }
  .hero-title { font-size: 20px; }
  .hero-head .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .hero-stat { padding: 10px; }
  .hero-stat-value { font-size: 16px; }
  .hero-foot { margin-top: 12px; }

  .lifetime-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .lifetime-card { padding: 12px; }
  .lifetime-icon { font-size: 18px; }
  .lifetime-value { font-size: 17px; }

  .quick-add-row { grid-template-columns: 1fr; gap: 10px; }
  .quick-add-btn { min-height: 60px; padding: 12px 14px; }
  .quick-add-icon { font-size: 22px; }

  .insight-row { padding: 10px 12px; gap: 10px; }
  .insight-icon { width: 34px; height: 34px; font-size: 16px; }
  .insight-text { font-size: 12.5px; }

  .months-grid { grid-template-columns: 1fr; gap: 10px; }
  .month-card { padding: 14px 14px 14px 18px; min-height: 88px; }
  .month-card-name { font-size: 16px; }
  .month-stat-value { font-size: 16px; }

  .modal { padding: 0; align-items: flex-end; }
  .modal-content {
    max-width: 100%; max-height: 92vh;
    border-radius: 18px 18px 0 0; border-bottom: none;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    animation: sheetIn .25s cubic-bezier(.2,.7,.3,1);
  }
  @keyframes sheetIn {
    from { opacity: 0; transform: translateY(100%); }
    to   { opacity: 1; transform: none; }
  }
  .modal-header::before {
    content: ""; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
    width: 40px; height: 4px; background: var(--border-2); border-radius: 4px;
  }
  .modal-header { position: relative; padding: 18px 16px 12px; }
  .modal-header h3 { font-size: 15px; }
  .modal-body { padding: 12px 14px 24px; }
  .modal-summary { gap: 8px; margin-bottom: 14px; }
  .modal-summary-card { padding: 10px 8px; }
  .modal-summary-label { font-size: 9px; }
  .modal-summary-value { font-size: 16px; }

  .form-grid { grid-template-columns: 1fr; gap: 10px; }
  .span-2 { grid-column: span 1; }
  .form-grid button[type="submit"], .form-grid .btn.span-2 { width: 100%; }
  .form-grid input, .form-grid select { padding: 13px 14px; min-height: 48px; font-size: 16px; }
  .checkbox-label { min-height: 48px; padding: 0; }

  .history-table { font-size: 12.5px; min-width: 520px; }
  .history-table th, .history-table td { padding: 10px 10px; }
  .history-table th:first-child, .history-table td:first-child {
    position: sticky; left: 0; background: var(--panel); z-index: 1;
  }
  .history-table th:first-child { background: var(--bg-2); z-index: 2; }
  .row-actions .btn { min-height: 34px; padding: 5px 10px; }

  .chart-wrap { height: 200px; }
  .chart-legend { font-size: 11px; margin-top: 10px; }

  .btn-row { flex-direction: column; }
  .btn-row .btn { width: 100%; }
  .mobile-nav { display: flex; }

  .install-banner { margin: 10px 12px 0; padding: 10px 12px; }
  .install-text strong { font-size: 13px; }
  .install-text span { font-size: 11px; }

  .footer { font-size: 11px; padding: 14px 12px; }
}

@media (max-width: 400px) {
  .brand-name { font-size: 15px; }
  .hero-stat-value { font-size: 15px; }
  .lifetime-value { font-size: 16px; }
  .month-card-name { font-size: 15px; }
  .month-card-stats { grid-template-columns: 1fr; gap: 4px; }
  .month-stat { flex-direction: row; justify-content: space-between; align-items: baseline; gap: 8px; }
  .month-stat-label { font-size: 10px; }
  .month-stat-value { font-size: 14px; }
  .month-card { min-height: auto; padding: 12px 12px 12px 16px; }
  .install-actions .btn { padding: 8px 10px; font-size: 12px; }
}

@media (max-height: 500px) and (orientation: landscape) {
  .container { padding-top: 8px; }
  .chart-wrap { height: 160px; }
  .month-card { min-height: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card, .month-card, .quick-add-btn { transition: none; }
  .modal-content, .theme-menu { animation: none; }
}