:root {
  --paper: #F6F3EC;
  --paper-2: #EFEAE0;
  --ink: #20241F;
  --ink-soft: #5B5B54;
  --line: #D9D3C4;
  --rust: #A8451F;
  --petrol: #1B5560;
  --ok: #3E6B3A;
  --time-bar: #7FA8B0;
  --miles-over: #D97B5A;
  --miles-under: #5FAE86;
  --radius: 14px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden { display: none !important; }

h1, h2, h3 { margin: 0; font-weight: 700; }
p { margin: 0; }

.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
}

button { font-family: var(--font-body); cursor: pointer; }

input {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--ink);
  width: 100%;
}
input:focus {
  outline: none;
  border-color: var(--rust);
  box-shadow: 0 0 0 2px rgba(168, 69, 31, 0.15);
}
input.invalid { border-color: var(--rust); }
input.mono { font-family: var(--font-mono); }

.btn {
  border: none;
  border-radius: 9px;
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: #14170F; }
.btn-rust { background: var(--rust); color: #fff; }
.btn-ghost { background: transparent; border: 1.5px solid var(--line); color: var(--ink-soft); }
.btn-ghost:hover { background: rgba(32,36,31,0.04); }
.btn-block { width: 100%; }

/* ---- Auth screen ---- */
.auth-wrap { flex: 1; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  width: 100%;
  max-width: 360px;
}
.auth-logo { display: flex; justify-content: center; margin-bottom: 14px; }
.auth-logo img { width: 44px; height: 44px; }
.auth-title { text-align: center; font-family: var(--font-display); font-size: 18px; margin-bottom: 2px; }
.auth-sub { text-align: center; font-size: 13px; color: var(--ink-soft); margin-bottom: 18px; }
.segmented {
  display: flex;
  gap: 3px;
  background: var(--paper-2);
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 14px;
}
.segmented button {
  flex: 1;
  border: none;
  background: transparent;
  padding: 7px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
}
.segmented button.active { background: var(--ink); color: var(--paper); }
.field { margin-bottom: 10px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: var(--ink-soft); margin-bottom: 4px; }
.auth-note { text-align: center; font-size: 11px; color: var(--ink-soft); margin-top: 14px; }
.auth-error { font-size: 12px; color: var(--rust); margin-bottom: 10px; }

/* ---- Main screen ---- */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px 8px;
}
.main-header .brand { display: flex; align-items: center; gap: 8px; }
.main-header .brand img { width: 26px; height: 26px; border-radius: 6px; }
.main-header h1 { font-family: var(--font-display); font-size: 17px; }
.icon-btn { background: transparent; border: none; color: var(--ink-soft); font-size: 18px; padding: 4px; }

.link-btn { background: none; border: none; color: var(--ink-soft); font-size: 12px; text-decoration: underline; padding: 0; cursor: pointer; }

.cars-list { padding: 12px 16px 40px; display: flex; flex-direction: column; gap: 10px; }

.car-card {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.car-card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; cursor: pointer; }
.car-name { font-size: 16px; font-weight: 700; }
.car-sub { font-size: 12px; color: var(--ink-soft); margin-top: 2px; font-family: var(--font-mono); }

.bar-row { margin-bottom: 6px; }
.bar-row-labels { display: flex; justify-content: space-between; margin-bottom: 3px; }
.bar-row-labels span { font-size: 11px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.02em; }
.bar-track { height: 8px; border-radius: 5px; background: var(--paper-2); overflow: hidden; }
.bar-fill { height: 100%; border-radius: 5px; }
/* fill colour is set inline per-vehicle: over cap -> var(--miles-over),
   under cap -> var(--miles-under); time bar is always var(--time-bar) */

.pace-note { font-size: 11px; color: var(--ink-soft); margin: 6px 0 0; }

.forecast-strip {
  display: flex;
  gap: 8px;
  border-radius: 8px;
  padding: 8px 10px;
  margin: 10px 0;
  background: var(--paper-2);
}
.forecast-strip .col { flex: 1; }
.forecast-strip .label { font-size: 10px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.02em; }
.forecast-strip .value { font-size: 13px; font-weight: 500; font-family: var(--font-mono); color: var(--ink); margin-top: 2px; }

.entry-row { display: flex; gap: 8px; margin-top: 4px; }
.entry-row input { flex: 1; }
.entry-feedback { font-size: 11px; margin-top: 6px; display: flex; align-items: center; gap: 4px; }
.entry-feedback.success { color: var(--ok); }
.entry-feedback.error { color: var(--rust); }

.add-car-row { padding: 0 16px 24px; }
.add-car-btn {
  width: 100%;
  border: 1.5px dashed #B4B2A9;
  background: transparent;
  padding: 12px;
  border-radius: var(--radius);
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 600;
}

.empty-state { text-align: center; padding: 40px 20px; color: var(--ink-soft); }
.empty-state h3 { margin-bottom: 6px; font-family: var(--font-display); }
.empty-state p { font-size: 13px; margin-bottom: 16px; }

/* ---- Vehicle screen ---- */
.vehicle-header { display: flex; align-items: center; gap: 10px; padding: 20px 16px; }
.vehicle-header h2 { font-family: var(--font-display); font-size: 17px; }
.vehicle-form { padding: 0 16px 32px; display: flex; flex-direction: column; gap: 12px; }
.two-col { display: flex; gap: 10px; }
.two-col .field { flex: 1; margin-bottom: 0; }
.form-error { font-size: 12px; color: var(--rust); }

.offline-banner {
  background: var(--rust);
  color: #fff;
  font-size: 12px;
  text-align: center;
  padding: 6px;
}

.toast {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 8px 16px;
  border-radius: 9px;
  font-size: 13px;
}