/* ===================================================================
   ОБЛІК ПЕРЕМІЩЕННЯ ТЗ — стилі
   Службовий, контрастний, mobile-first дизайн.
=================================================================== */

:root {
  --bg: #0f1418;
  --bg-elevated: #171e24;
  --bg-card: #1c252c;
  --border: #2a343c;
  --text: #eaf0f4;
  --text-dim: #9db0bd;
  --text-faint: #6d7f8c;

  --accent: #2f8fd6;
  --accent-strong: #4aa8ea;

  --status-active: #2f8fd6;
  --status-success: #34a853;
  --status-warning: #e0b400;
  --status-danger: #e04b3f;

  --radius: 10px;
  --radius-lg: 14px;
  --gap: 12px;

  --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Roboto Mono', 'Consolas', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
}

body {
  padding-bottom: 90px; /* під фіксовану нижню навігацію */
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0 0 8px 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

a { color: var(--accent-strong); }

button, input, select, textarea {
  font-family: inherit;
  font-size: 16px; /* запобігає zoom на iOS */
}

/* ---------- HEADER ---------- */

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  padding: 14px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.app-header .title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header h1 {
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
}

.app-header .back-btn {
  background: none;
  border: none;
  color: var(--accent-strong);
  font-size: 22px;
  padding: 0 8px 0 0;
  cursor: pointer;
}

.app-header .clock {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
}

/* ---------- LAYOUT ---------- */

.screen {
  padding: 16px;
  max-width: 720px;
  margin: 0 auto;
}

.hidden { display: none !important; }

/* ---------- HOME GRID ---------- */

.home-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: 16px;
}

.big-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: var(--radius-lg);
  padding: 18px 18px;
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  text-align: left;
}

.big-btn i { font-size: 22px; color: var(--accent-strong); width: 26px; text-align: center; }

.big-btn:active { transform: scale(0.98); background: var(--bg-elevated); }

.big-btn.primary { background: var(--accent); border-color: var(--accent); }
.big-btn.primary i { color: #fff; }
.big-btn.primary:active { background: var(--accent-strong); }

.big-btn .badge {
  margin-left: auto;
  background: var(--status-active);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 20px;
  padding: 2px 10px;
}

/* ---------- FORMS ---------- */

.form-section-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 22px 0 10px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.form-group .required::after {
  content: ' *';
  color: var(--status-danger);
}

.form-control {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 12px 12px;
  min-height: 46px;
}

.form-control:focus {
  outline: 2px solid var(--accent-strong);
  outline-offset: 1px;
}

.form-control.invalid {
  border-color: var(--status-danger);
}

textarea.form-control { min-height: 80px; resize: vertical; }

.field-hint { font-size: 12px; color: var(--text-faint); margin-top: 4px; }
.field-error { font-size: 12px; color: var(--status-danger); margin-top: 4px; display: none; }
.field-error.visible { display: block; }

.input-with-suffix { position: relative; }
.input-with-suffix .suffix {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-weight: 600;
  pointer-events: none;
}

.btn-block {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: none;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 8px;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:active { background: var(--accent-strong); }

.btn-success { background: var(--status-success); color: #fff; }
.btn-danger { background: var(--status-danger); color: #fff; }
.btn-secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }

/* ---------- CARDS ---------- */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
}

.card-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  gap: 12px;
}
.card-row:last-child { border-bottom: none; }
.card-row .label { color: var(--text-dim); }
.card-row .value { text-align: right; font-weight: 600; }

.card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.card-title .trip-id { font-family: var(--font-mono); font-size: 13px; color: var(--text-faint); }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.status-pill::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

.status-active { background: rgba(47,143,214,0.15); color: var(--status-active); }
.status-success { background: rgba(52,168,83,0.15); color: var(--status-success); }
.status-warning { background: rgba(224,180,0,0.15); color: var(--status-warning); }
.status-danger { background: rgba(224,75,63,0.15); color: var(--status-danger); }

.card-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.card-actions .btn-block { margin-top: 0; }

/* ---------- BOTTOM NAV ---------- */

.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  z-index: 30;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.bottom-nav button {
  background: none;
  border: none;
  color: var(--text-faint);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  padding: 12px 2px 10px;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.1s ease;
}

.bottom-nav button i {
  font-size: 22px;
  transition: transform 0.2s ease;
}

.bottom-nav button:active {
  transform: scale(0.95);
}

.bottom-nav button.active {
  color: var(--accent-strong);
}

.bottom-nav button.active i {
  transform: translateY(-2px);
}

/* ---------- HISTORY / SEARCH ---------- */

.filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 12px;
}
.filter-bar select, .filter-bar input {
  flex: 0 0 auto;
  min-width: 130px;
}

.search-box { margin-bottom: 12px; }

.empty-state {
  text-align: center;
  color: var(--text-faint);
  padding: 40px 20px;
}
.empty-state i { font-size: 34px; display: block; margin-bottom: 10px; }

/* ---------- DASHBOARD ---------- */

.period-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  overflow-x: auto;
}
.period-tabs button {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
}
.period-tabs button.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.kpi-card .kpi-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
}
.kpi-card .kpi-label {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 6px;
}

.chart-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
  margin-bottom: 16px;
}
.chart-wrap h3 { font-size: 14px; color: var(--text-dim); font-weight: 600; margin-bottom: 10px; }
.chart-wrap canvas { max-width: 100%; }

.route-card { margin-bottom: 10px; }
.route-card .route-name { font-weight: 700; margin-bottom: 6px; font-size: 14px; }

/* ---------- TOASTS ---------- */

#toast-container {
  position: fixed;
  bottom: 84px;
  left: 0; right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 100;
  pointer-events: none;
}

.toast {
  max-width: 90%;
  padding: 12px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  color: #fff;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s, transform 0.25s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.toast-visible { opacity: 1; transform: translateY(0); }
.toast-error { background: var(--status-danger); }
.toast-success { background: var(--status-success); }
.toast-info { background: var(--accent); }

/* ---------- UTILS ---------- */

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-dim { color: var(--text-dim); }
.text-center { text-align: center; }
.w-full { width: 100%; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.export-btn-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

@media (min-width: 560px) {
  .home-grid { grid-template-columns: 1fr 1fr; }
}