/* ============================================================================
   MILES Preisrechner — Styles
   ============================================================================ */

:root {
  --navy: #111111;
  --navy-2: #1a1a1a;
  --ink: #d4d4d4;
  --muted: #999999;
  --bg: #1a1a1a;
  --card: #222222;
  --border: #2e2e2e;
  --accent: #E8554E;
  --accent-soft: #2a1a1a;
  --best: #1a3d25;
  --best-border: #29a24a;
  --save: #4dbb7a;
  --lose: #e06060;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.3);

  --brand-miles: #E8554E;
  --brand-sixt: #ff5f00;
  --brand-free2move: #1c69d4;
}

.provider-miles { --brand: var(--brand-miles); }
.provider-sixt { --brand: var(--brand-sixt); }
.provider-free2move { --brand: var(--brand-free2move); }

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Raleway', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Header ------------------------------------------------------------------- */

.site-header {
  background: var(--navy);
  color: #fff;
  padding: 1.5rem 1rem;
  text-align: center;
  position: relative;
}
.back-link {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.back-link:hover { color: var(--ink); }
.site-header h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: 0.01em;
}
.site-header .subtitle {
  margin: 0.25rem 0 0;
  color: #b9c7d9;
  font-size: 0.95rem;
}

/* Layout ------------------------------------------------------------------- */

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
}

main > section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

main > section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--ink);
}

/* Inputs ------------------------------------------------------------------- */

.inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 520px) {
  .inputs { grid-template-columns: 1fr; }
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.input-group.inline {
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.input-group label {
  font-weight: 600;
  color: var(--ink);
  font-size: 0.95rem;
}

.input-with-suffix,
.input-duo {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

.input-with-suffix {
  position: relative;
}

input[type="number"],
select {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  width: 100%;
  min-height: 44px;
}

input[type="number"]:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.input-with-suffix .suffix {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.input-with-suffix input { padding-right: 2.5rem; }

.input-duo input { flex: 2; }
.input-duo select { flex: 1; min-width: 110px; }

.input-group.inline input {
  width: 90px;
}

/* Results table ------------------------------------------------------------ */

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -0.5rem;
}

.results-table {
  width: 100%;
  min-width: 980px;
  border-collapse: separate;
  border-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.results-table th,
.results-table td {
  padding: 0.6rem 0.5rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.results-table thead th {
  background: #1d1d1d;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.9rem;
  position: sticky;
  top: 0;
}

.results-table thead th:first-child {
  text-align: left;
}

.results-table .col-sub {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 400;
  text-transform: lowercase;
}

.results-table tbody th {
  text-align: left;
  font-weight: 600;
  background: #252525;
}

.cls-label {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-right: 0.4rem;
}

.cls-desc {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85rem;
}

.cls-hint {
  display: block;
  color: var(--lose);
  font-size: 0.75rem;
  font-weight: 400;
  margin-top: 2px;
}

.cell-sub {
  font-size: 0.7rem;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 2px;
  white-space: nowrap;
}

.cell { cursor: help; }
.cell-na { color: var(--muted); cursor: default; }
.cell-best {
  background: var(--best);
  border: 1px solid var(--best-border);
  font-weight: 700;
  color: #a8e6bf;
  border-radius: 6px;
}
.cell-price {
  font-weight: inherit;
  white-space: nowrap;
}

.pass-badge {
  display: inline-block;
  margin-top: 2px;
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.pass-silber  { background: #dde2ea; color: #3f4654; border: 1px solid #c3cbd8; }
.pass-gold    { background: #f3d478; color: #594200; border: 1px solid #d9b74e; }
.pass-platin  { background: #e2e3ef; color: #2b2c5b; border: 1px solid #b9bbd1; }
.pass-black   { background: #1a1a1a; color: #f3c94a; border: 1px solid #000; }
.pass-tier50  { background: #d4e4f7; color: #1c4a8c; border: 1px solid #a0c0e8; }
.pass-tier100 { background: #1c69d4; color: #fff;    border: 1px solid #1558b0; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.75rem 0 0.25rem;
}

.legend-best { display: inline-flex; align-items: center; gap: 0.35rem; }
.swatch {
  display: inline-block;
  width: 12px; height: 12px;
  background: var(--best);
  border: 1px solid var(--best-border);
  border-radius: 3px;
}

.assumption {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.4rem 0 0;
}

.muted { color: var(--muted); }

/* Footer ------------------------------------------------------------------- */

.site-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 1.5rem 1rem 2rem;
}

.site-footer a { color: var(--accent); }

/* Mobile tweaks ------------------------------------------------------------ */

@media (max-width: 600px) {
  .site-header h1 { font-size: 1.3rem; }
  main { padding: 0.75rem; }
  main > section { padding: 0.85rem 0.85rem; }
  .results-table th,
  .results-table td {
    padding: 0.5rem 0.4rem;
    font-size: 0.9rem;
  }
}

/* Km-Slider ---------------------------------------------------------------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 10% 100%;
  background-repeat: no-repeat;
  outline: none;
  cursor: pointer;
  margin-top: 0.5rem;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--card);
  box-shadow: 0 0 0 1px var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--card);
}

input[type="range"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Km-Modus-Toggle ---------------------------------------------------------- */

.km-mode-toggle {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 0.5rem;
}

.km-mode-btn {
  flex: 1;
  padding: 0.45rem 0.5rem;
  background: var(--card);
  color: var(--muted);
  border: none;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
}

.km-mode-btn + .km-mode-btn {
  border-left: 1px solid var(--border);
}

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

.km-mode-btn:hover:not(.active) {
  background: var(--navy-2);
  color: var(--ink);
}

/* Route-Eingabe ------------------------------------------------------------ */

.route-inputs {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.route-inputs input[type="text"] {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  width: 100%;
  min-height: 44px;
}

.route-inputs input[type="text"]::placeholder { color: var(--muted); }

.route-inputs input[type="text"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

#route-calc-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  min-height: 44px;
  transition: opacity 0.15s;
}

#route-calc-btn:hover { opacity: 0.85; }
#route-calc-btn:disabled { opacity: 0.5; cursor: default; }

.route-result {
  font-size: 0.85rem;
  color: var(--save);
  margin: 0;
}

.route-result--error { color: var(--lose); }

/* Autocomplete-Dropdown ---------------------------------------------------- */

.autocomplete-wrap {
  position: relative;
}

.autocomplete-list {
  position: absolute;
  top: calc(100% + 3px);
  left: 0;
  right: 0;
  z-index: 100;
  margin: 0;
  padding: 0.25rem 0;
  list-style: none;
  background: #2a2a2a;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  max-height: 220px;
  overflow-y: auto;
}

.autocomplete-list li {
  display: flex;
  flex-direction: column;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  gap: 0.1rem;
}

.autocomplete-list li:hover,
.autocomplete-list li.ac-active {
  background: var(--accent-soft);
}

.ac-main {
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ac-sub {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Datetime-Picker ---------------------------------------------------------- */

.input-group--datetime {
  grid-column: 1 / -1;
}

.datetime-pair {
  display: flex;
  gap: 0.75rem;
}

.datetime-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.datetime-field label {
  font-weight: 600;
  color: var(--ink);
  font-size: 0.95rem;
}

input[type="datetime-local"] {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  width: 100%;
  min-height: 44px;
  color-scheme: dark;
}

input[type="datetime-local"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

input[type="datetime-local"].is-invalid {
  border-color: var(--lose);
  outline: 2px solid var(--lose);
  outline-offset: 1px;
}

.datetime-error {
  color: var(--lose);
  font-size: 0.85rem;
  margin: 0.35rem 0 0;
}

@media (max-width: 400px) {
  .datetime-pair { flex-direction: column; }
}

/* Best-Overall-Card ---------------------------------------------------------- */

.best-overall-card {
  background: linear-gradient(135deg, var(--best) 0%, rgba(26, 61, 37, 0.4) 100%);
  border: 1px solid var(--best-border);
  border-left: 4px solid var(--brand, var(--best-border));
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.best-overall-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}

.best-overall-headline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0.35rem 0 0.4rem;
  flex-wrap: wrap;
}

.best-overall-provider {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--brand, #fff);
}

.best-overall-price {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--save);
}

.best-overall-detail {
  font-size: 0.95rem;
  color: var(--ink);
}

/* Provider-Tabs -------------------------------------------------------------- */

.provider-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.tab-btn[aria-selected="true"] {
  color: var(--brand, var(--accent));
  border-bottom-color: var(--brand, var(--accent));
}

.tab-btn:focus-visible {
  outline: 2px solid var(--brand, var(--accent));
  outline-offset: -2px;
}

/* Provider-Panels ----------------------------------------------------------- */

.provider-panel {
  padding-top: 1rem;
}

.provider-note {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
  margin: 0 0 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--navy-2);
  border-left: 3px solid var(--brand, var(--accent));
  border-radius: 4px;
}

@media (max-width: 600px) {
  .best-overall-headline {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }
  .best-overall-price { font-size: 1.5rem; }
  .tab-btn { padding: 0.6rem 0.8rem; font-size: 0.9rem; }
}