/* GV70 Lease Tracker — mobile-first static styles */
:root,
[data-theme="light"] {
  --text-xs: clamp(.75rem, .72rem + .18vw, .85rem);
  --text-sm: clamp(.88rem, .84rem + .22vw, .98rem);
  --text-base: clamp(1rem, .96rem + .2vw, 1.08rem);
  --text-lg: clamp(1.12rem, 1.02rem + .5vw, 1.35rem);
  --text-xl: clamp(1.4rem, 1.2rem + .8vw, 1.9rem);
  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem;
  --color-bg: #f7f6f2; --color-surface: #f9f8f5; --color-surface-2: #fbfbf9;
  --color-surface-offset: #f0ece7;
  --color-text: #28251d; --color-text-muted: #6f6c66; --color-text-faint: #98958f;
  --color-text-inverse: #f9f8f4;
  --color-primary: #01696f; --color-primary-highlight: #cedcd8;
  --color-success: #437a22; --color-warning: #964219;
  --color-blue: #006494; --color-purple: #7a39bb;
  --color-divider: #e3dfd9;
  --border: rgba(40, 37, 29, .10);
  --radius-md: .8rem; --radius-lg: 1rem; --radius-full: 9999px;
  --shadow: 0 8px 24px rgba(40, 37, 29, .08);
  --font-body: 'Satoshi', 'Inter', system-ui, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #171614; --color-surface: #1c1b19; --color-surface-2: #211f1d;
  --color-surface-offset: #262320;
  --color-text: #e7e2d8; --color-text-muted: #b0aaa2; --color-text-faint: #7f7a72;
  --color-text-inverse: #171614;
  --color-primary: #4f98a3; --color-primary-highlight: #2b3c3d;
  --color-success: #73ae4c; --color-warning: #c97a4f;
  --color-blue: #6da8d5; --color-purple: #b185e6;
  --color-divider: #2a2825;
  --border: rgba(255, 255, 255, .08);
  --shadow: 0 10px 26px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  min-height: 100dvh;
  line-height: 1.5;
}
button, input, select { font: inherit; color: inherit; }
button { border: none; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: 6px; }
a { color: var(--color-primary); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

/* App shell */
.app {
  padding: max(env(safe-area-inset-top), 1rem) var(--space-4) calc(5.5rem + env(safe-area-inset-bottom));
}

/* Hero */
.hero { display: grid; gap: var(--space-4); margin-bottom: var(--space-5); }
.brand { display: flex; align-items: center; gap: var(--space-3); }
.logo {
  width: 44px; height: 44px; border-radius: 14px;
  background: var(--color-primary-highlight); color: var(--color-primary);
  display: grid; place-items: center; flex: none;
}
.logo svg { width: 24px; height: 24px; }
.title h1 { margin: 0; font-size: var(--text-xl); line-height: 1.05; letter-spacing: -.02em; }
.title p { margin: .3rem 0 0; color: var(--color-text-muted); font-size: var(--text-sm); }

.top-actions { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: .45rem;
  background: var(--color-surface-offset); padding: .6rem .85rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 700; color: var(--color-text-muted);
}
.chip strong { color: var(--color-text); }

.btn {
  min-height: 48px;             /* large tap target */
  padding: .85rem 1.1rem;
  border-radius: var(--radius-md);
  font-weight: 800;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform .12s ease, background .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover { background: color-mix(in oklab, var(--color-primary) 88%, black); }
.btn-soft { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--border); }

.banner {
  padding: .75rem 1rem; border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--color-warning) 14%, var(--color-surface));
  color: var(--color-warning); font-size: var(--text-sm); font-weight: 600;
  border: 1px solid color-mix(in oklab, var(--color-warning) 30%, transparent);
}

/* Sections */
.section { display: grid; gap: var(--space-4); margin-bottom: var(--space-6); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: var(--space-3); }
.section-head h2 { font-size: var(--text-lg); margin: 0; letter-spacing: -.01em; }
.section-head p { margin: .3rem 0 0; color: var(--color-text-muted); font-size: var(--text-sm); }

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-4);
}

/* KPI grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}
.metric-card { position: relative; overflow: hidden; }
.metric-card::after {
  content: ''; position: absolute; right: -18px; bottom: -30px;
  width: 90px; height: 90px; border-radius: 50%;
  background: color-mix(in oklab, var(--accent) 14%, transparent);
}
.eyebrow {
  font-size: var(--text-xs); letter-spacing: .08em; text-transform: uppercase;
  color: var(--color-text-faint); margin-bottom: var(--space-2);
}
.metric {
  font-size: 1.7rem; font-weight: 900; letter-spacing: -.03em;
  font-variant-numeric: tabular-nums lining-nums;
}
.sub { margin-top: var(--space-2); font-size: var(--text-xs); color: var(--color-text-muted); }

/* Offer list */
.offer-list { display: grid; gap: var(--space-3); }
.offer-card h3 { margin: 0 0 .25rem; font-size: 1rem; }
.price-line {
  display: flex; justify-content: space-between; align-items: end;
  gap: var(--space-2); margin-bottom: var(--space-2);
}
.price { font-size: 1.45rem; font-weight: 900; font-variant-numeric: tabular-nums; }
.price-unit { font-size: .9rem; color: var(--color-text-muted); font-weight: 600; }
.meta { display: grid; gap: .25rem; color: var(--color-text-muted); font-size: var(--text-sm); }
.status-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--space-2); margin-top: var(--space-3);
  flex-wrap: wrap;
}
.pill {
  display: inline-flex; align-items: center;
  padding: .42rem .7rem; border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 800;
}
.good   { background: color-mix(in oklab, var(--color-success) 16%, var(--color-surface)); color: var(--color-success); }
.warn   { background: color-mix(in oklab, var(--color-warning) 16%, var(--color-surface)); color: var(--color-warning); }
.note   { background: color-mix(in oklab, var(--color-blue) 16%, var(--color-surface));   color: var(--color-blue); }
.flat   { background: color-mix(in oklab, var(--color-blue) 16%, var(--color-surface));   color: var(--color-blue); }
.up     { background: color-mix(in oklab, var(--color-warning) 16%, var(--color-surface)); color: var(--color-warning); }
.down   { background: color-mix(in oklab, var(--color-success) 16%, var(--color-surface)); color: var(--color-success); }

.tap-link {
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 .9rem; border-radius: var(--radius-md);
  background: var(--color-primary-highlight); color: var(--color-primary);
  font-weight: 700; font-size: var(--text-sm);
}
.tap-link:hover, .tap-link:focus-visible {
  background: color-mix(in oklab, var(--color-primary-highlight) 75%, var(--color-primary));
  text-decoration: none;
}

/* Chart */
.chart-wrap { height: 260px; }

/* Tables — scroll horizontally on small screens; collapse to stacked rows on very narrow */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
}
.data-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); min-width: 520px; }
.data-table th, .data-table td {
  text-align: left; padding: .85rem .7rem;
  border-bottom: 1px solid var(--color-divider);
  font-variant-numeric: tabular-nums lining-nums;
  vertical-align: top;
}
.data-table th {
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .08em;
  color: var(--color-text-faint); background: var(--color-surface-2);
  position: sticky; top: 0;
}
.muted-row { color: var(--color-text-muted); text-align: center; padding: 1.25rem; }

/* Stacked-card fallback for very narrow screens */
@media (max-width: 480px) {
  .data-table { min-width: 0; }
  .data-table thead { display: none; }
  .data-table, .data-table tbody, .data-table tr, .data-table td { display: block; width: 100%; }
  .data-table tr {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    padding: var(--space-3);
    background: var(--color-surface-2);
  }
  .data-table td {
    border: none; padding: .35rem 0;
    display: flex; justify-content: space-between; gap: var(--space-3);
  }
  .data-table td::before {
    content: attr(data-label);
    font-size: var(--text-xs);
    text-transform: uppercase; letter-spacing: .08em;
    color: var(--color-text-faint); font-weight: 700;
    flex: 0 0 auto;
  }
  .data-table td.muted-row { display: block; text-align: center; }
  .data-table td.muted-row::before { content: none; }
}

/* Forms */
.form-grid { display: grid; gap: var(--space-3); }
.field label {
  display: block; font-size: var(--text-xs);
  font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
  color: var(--color-text-faint); margin-bottom: .45rem;
}
.field input, .field select {
  width: 100%;
  min-height: 48px;             /* large tap target */
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--color-surface-2);
  padding: .85rem .9rem;
  color: var(--color-text);
}
.summary { display: grid; gap: var(--space-2); padding-top: var(--space-3); margin-top: var(--space-3); border-top: 1px solid var(--color-divider); }
.summary-row { display: flex; justify-content: space-between; gap: var(--space-3); font-size: var(--text-sm); }
.summary-row strong { font-variant-numeric: tabular-nums; }

/* Footer */
.page-footer {
  margin-top: var(--space-6);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  text-align: center;
}

/* Sticky bottom nav */
.footer-nav {
  position: fixed; left: 0; right: 0; bottom: 0;
  padding: .7rem var(--space-4) calc(.7rem + env(safe-area-inset-bottom));
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem;
  z-index: 20;
}
.footer-nav a {
  text-decoration: none; color: var(--color-text-muted);
  font-size: var(--text-xs); font-weight: 700;
  text-align: center;
  min-height: 44px;
  display: grid; place-items: center;
  border-radius: .8rem;
}
.footer-nav a.active, .footer-nav a:hover {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}

/* Tablet+ */
@media (min-width: 760px) {
  .app { max-width: 960px; margin: 0 auto; padding-bottom: 6rem; }
  .kpi-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .offer-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chart-wrap { height: 320px; }
}

/* Desktop */
@media (min-width: 1100px) {
  .offer-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}