/* Pace-Rechner – Layout und Farben. Dark Mode folgt der Systemeinstellung. */

:root {
  color-scheme: light dark;

  --bg: #f5f5f7;
  --surface: #ffffff;
  --border: #d9d9de;
  --text: #111114;
  --muted: #5f6068;
  --accent: #2563eb;
  --accent-bg: #e8effd;
  --row-hover: #eef0f4;

  --radius: 14px;
  --tabbar-height: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d0d;
    --surface: #141414;
    --border: #2e2e33;
    --text: #f2f2f4;
    --muted: #a3a3ab;
    --accent: #4a8af4;
    --accent-bg: #121b2b;
    --row-hover: #1c1c20;
  }
}

* { box-sizing: border-box; }

html {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  font-variant-numeric: tabular-nums;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
}

main {
  max-width: 520px;
  margin: 0 auto;
  padding: calc(var(--safe-top) + 20px) 16px calc(var(--tabbar-height) + var(--safe-bottom) + 24px);
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 16px;
}

h2 {
  font-size: 1.05rem;
  margin: 0 0 10px;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
  margin: 12px 0 0;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- Distanz-Chips --- */

.chips {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.chip {
  flex: 1 1 auto;
  min-height: 44px;
  padding: 0 12px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 1rem;
}

.chip[data-race="custom"] { flex-grow: 1.6; }

.chip[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-bg);
  font-weight: 700;
}

/* --- Eingabefelder --- */

.fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr); /* Eingabefelder dürfen nicht über den Rand wachsen */
  gap: 12px;
}

.field {
  display: block;
  padding: 12px 16px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: text;
}

.field-label {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.field-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.field input {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1.6rem; /* >= 16px verhindert Zoom auf iOS */
  font-weight: 700;
  outline: none;
}

.field input::placeholder {
  color: var(--muted);
  font-weight: 400;
  opacity: 0.6;
}

.unit {
  color: var(--muted);
  font-size: 1rem;
}

.field:focus-within {
  border-color: var(--muted);
}

.field.is-computed {
  border-color: var(--accent);
  background: var(--accent-bg);
}

/* --- Zwischenzeiten --- */

.splits {
  margin-top: 24px;
}

.splits-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0 16px;
}

.splits-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 2px;
  border-bottom: 1px solid var(--border);
}

.splits-list .km { color: var(--muted); }

.splits-list li.is-finish {
  grid-column: 1 / -1;
  font-weight: 700;
  border-bottom: 0;
  margin-top: 4px;
}

.splits-list li.is-finish .km { color: var(--text); }

/* --- Pace-Tabelle --- */

.table-wrap {
  margin-top: 12px;
}

.pace-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.95rem;
}

.pace-table th,
.pace-table td {
  padding: 12px 4px;
  text-align: right;
  white-space: nowrap;
}

.pace-table th:first-child,
.pace-table td:first-child {
  text-align: left;
  padding-left: 12px;
}

.pace-table th:last-child,
.pace-table td:last-child { padding-right: 12px; }

.pace-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--bg);
  color: var(--muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

.pace-table tbody tr { cursor: pointer; }

.pace-table tbody tr:hover td { background: var(--row-hover); }

.pace-table td:first-child { font-weight: 600; }

.pace-table .row-button {
  all: unset;
  cursor: pointer;
}

.pace-table .row-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.pace-table tr.is-current td {
  background: var(--accent-bg);
  font-weight: 700;
  border-top: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
}

.pace-table tr.is-current td:first-child {
  border-left: 2px solid var(--accent);
  border-radius: 10px 0 0 10px;
}

.pace-table tr.is-current td:last-child {
  border-right: 2px solid var(--accent);
  border-radius: 0 10px 10px 0;
}

/* --- Tab-Leiste --- */

.tabbar {
  position: fixed;
  inset: auto 0 0 0;
  display: flex;
  justify-content: center;
  padding-bottom: var(--safe-bottom);
  background: var(--bg);
  border-top: 1px solid var(--border);
  z-index: 10;
}

.tab {
  flex: 0 1 260px;
  height: var(--tabbar-height);
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.05rem;
}

.tab[aria-selected="true"] {
  color: var(--text);
  font-weight: 700;
}

[hidden] { display: none !important; }

@media (max-width: 360px) {
  .chip { padding: 0 8px; font-size: 0.95rem; }
  .pace-table { font-size: 0.85rem; }
}