/* ==========================================================================
   Pace — estilos
   Tokens en :root (modo oscuro por defecto) y variante clara por media query.
   ========================================================================== */

:root {
  --bg: #07080c;
  --card: rgba(255, 255, 255, 0.045);
  --card-b: rgba(255, 255, 255, 0.08);
  --field: rgba(255, 255, 255, 0.045);
  --field-b: rgba(255, 255, 255, 0.08);
  --text: #f2f4f8;
  --muted: #8a90a0;
  --accent: #c8ff3d;          /* relleno (lima) */
  --accent-text: #c8ff3d;     /* acento usado como color de texto */
  --accent-ink: #0b0d06;      /* texto sobre el relleno de acento */
  --accent-2: #5b8cff;
  --accent-3: #ff4fd8;
  --glow: rgba(200, 255, 61, 0.35);
  --bar: rgba(200, 255, 61, 0.09);
  --aurora-opacity: 0.32;
  --shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.8);
  --radius: 24px;
  --font: 'Space Grotesk', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --ease-spring: cubic-bezier(0.3, 1.35, 0.5, 1);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef0f4;
    --card: rgba(255, 255, 255, 0.7);
    --card-b: rgba(12, 16, 26, 0.07);
    --field: rgba(12, 16, 26, 0.035);
    --field-b: rgba(12, 16, 26, 0.08);
    --text: #0c0f16;
    --muted: #5f6677;
    --accent-text: #4c7a00;
    --glow: rgba(120, 170, 0, 0.35);
    --bar: rgba(120, 190, 0, 0.12);
    --aurora-opacity: 0.22;
    --shadow: 0 30px 70px -45px rgba(20, 30, 60, 0.35);
    color-scheme: light;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
button { font: inherit; color: inherit; -webkit-tap-highlight-color: transparent; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; }

/* ---------- Fondo aurora ---------- */
.aurora { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.aurora span {
  position: absolute; border-radius: 50%;
  width: 70vmax; height: 70vmax;
  filter: blur(90px);
  opacity: var(--aurora-opacity);
  animation: drift 24s ease-in-out infinite alternate;
  will-change: transform;
}
.aurora span:nth-child(1) { background: var(--accent); top: -40vmax; left: -25vmax; }
.aurora span:nth-child(2) { background: var(--accent-2); bottom: -45vmax; right: -30vmax; animation-delay: -9s; }
.aurora span:nth-child(3) { background: var(--accent-3); top: 35%; left: 55%; width: 35vmax; height: 35vmax; opacity: calc(var(--aurora-opacity) * 0.45); animation-delay: -15s; }
@keyframes drift { to { transform: translate3d(8vmax, 6vmax, 0) scale(1.12); } }

/* ---------- Layout ---------- */
.app {
  position: relative; z-index: 1;
  max-width: 560px; margin: 0 auto;
  padding: max(14px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) calc(28px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 0 18px; }
.brand { font-size: 30px; font-weight: 700; letter-spacing: -0.05em; text-decoration: none; line-height: 1; }
.brand span { color: var(--accent-text); }

.layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.side { display: grid; gap: 14px; align-content: start; }

.card {
  background: var(--card);
  border: 1px solid var(--card-b);
  border-radius: var(--radius);
  padding: 18px;
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), var(--shadow);
}

.row-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.eyebrow .muted { letter-spacing: 0.06em; text-transform: none; font-weight: 500; opacity: 0.8; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.icon-btn {
  display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 12px; border: 1px solid var(--field-b); background: var(--field);
  color: var(--muted); cursor: pointer; transition: color .2s, transform .3s var(--ease-spring);
}
.icon-btn:hover { color: var(--text); }
.icon-btn:active { transform: rotate(-90deg) scale(0.92); }

/* ---------- Segmented control ---------- */
.seg {
  --n: 2; --i: 0; --pad: 4px;
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: repeat(var(--n), 1fr);
  padding: var(--pad); border-radius: 999px;
  background: var(--field); border: 1px solid var(--field-b);
}
.seg button {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; background: none; cursor: pointer;
  padding: 11px 12px; border-radius: 999px;
  font-size: 15px; font-weight: 600; color: var(--muted); white-space: nowrap;
  transition: color .25s ease;
}
.seg button[aria-checked="true"] { color: var(--accent-ink); }
.seg button:not([aria-checked="true"]):hover { color: var(--text); }
.seg-thumb {
  position: absolute; z-index: 0;
  top: var(--pad); bottom: var(--pad); left: var(--pad);
  width: calc((100% - 2 * var(--pad)) / var(--n));
  border-radius: 999px; background: var(--accent);
  box-shadow: 0 8px 28px -8px var(--glow), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transform: translateX(calc(var(--i) * 100%));
  transition: transform .45s var(--ease-spring);
}
.seg-sm button { padding: 8px 14px; font-size: 14px; }
.seg-sm svg { width: 16px; height: 16px; }
.seg-xs { --pad: 3px; margin-left: auto; }
.seg-xs button { padding: 4px 10px; font-size: 12px; }

/* ---------- Pista / Ruta ---------- */
body:not([data-mode="pista"]) .pista-only { display: none !important; }
.lap-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }

/* ---------- Campos ---------- */
.field {
  margin-top: 12px; padding: 14px 16px 16px;
  border-radius: 20px; background: var(--field); border: 1px solid var(--field-b);
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.field:focus-within { border-color: color-mix(in srgb, var(--text) 25%, transparent); }
.field-head { display: flex; align-items: center; gap: 8px; min-height: 26px; margin-bottom: 6px; }
.field label { font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.badge {
  display: none; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
}
.field.is-target {
  border-color: color-mix(in srgb, var(--accent-text) 55%, transparent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%), var(--field);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 10%, transparent), 0 18px 50px -24px var(--glow);
}
.field.is-target .badge { display: inline-flex; }
.field.is-target .num { color: var(--accent-text); cursor: default; }

.inputs { display: flex; align-items: baseline; gap: 2px; min-width: 0; }
.num {
  width: 2.3ch; min-width: 0; max-width: 100%; padding: 0;
  border: 0; outline: 0; background: none; color: var(--text);
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: clamp(34px, 10.5vw, 46px); font-weight: 600; letter-spacing: -0.04em; line-height: 1.1;
  caret-color: var(--accent-text);
  transition: color .3s;
}
.num::placeholder { color: color-mix(in srgb, var(--muted) 45%, transparent); }
.u { font-size: 15px; font-weight: 600; color: var(--muted); margin: 0 10px 0 3px; }
.u.colon { font-family: var(--mono); font-size: clamp(30px, 9vw, 40px); margin: 0 2px; }
#paceUnit, #distUnit { margin-left: 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  padding: 8px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--field-b); background: transparent;
  font-size: 14px; font-weight: 600; color: var(--text);
  transition: background .2s, color .2s, transform .25s var(--ease-spring), border-color .2s;
}
.chip:hover { border-color: color-mix(in srgb, var(--text) 30%, transparent); }
.chip:active { transform: scale(0.94); }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip.track { font-family: var(--mono); font-size: 13px; }

/* ---------- Resultado ---------- */
.hero { padding: 4px 2px 16px; }
.hero-value {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  font-family: var(--mono); font-variant-numeric: tabular-nums; font-weight: 700;
  font-size: clamp(52px, 17vw, 84px); letter-spacing: -0.06em; line-height: 1;
  margin-top: 6px;
}
.hero-value #heroValue {
  background: linear-gradient(100deg, var(--text) 10%, var(--accent-text) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-value small { font-family: var(--font); font-size: 18px; font-weight: 600; letter-spacing: 0; color: var(--muted); }
.hero.bump #heroValue { animation: bump .5s var(--ease-spring); }
@keyframes bump { from { opacity: .4; transform: translateY(6px); } }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { padding: 12px 14px; border-radius: 16px; background: var(--field); border: 1px solid var(--field-b); min-width: 0; }
.stat dt { font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.stat dd { margin-top: 4px; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 21px; font-weight: 600; letter-spacing: -0.03em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat dd small { font-family: var(--font); font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: 0; margin-left: 4px; }

.share {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  margin-top: 12px; padding: 13px; border-radius: 16px; cursor: pointer;
  border: 1px solid var(--field-b); background: transparent;
  font-size: 15px; font-weight: 600;
  transition: background .2s, transform .25s var(--ease-spring);
}
.share:hover { background: var(--field); }
.share:active { transform: scale(0.98); }

/* ---------- Parciales ---------- */
.table { font-variant-numeric: tabular-nums; }
/* Distancia flexible; las columnas de tiempo nunca se encogen por debajo de su contenido. */
.thead, .r { display: grid; grid-template-columns: minmax(0, 1fr) minmax(max-content, 0.9fr) minmax(max-content, 1.1fr); column-gap: 12px; align-items: center; }
.thead span, .r span { white-space: nowrap; }
.r .d { overflow: hidden; text-overflow: ellipsis; }
.r .d small { font-family: var(--font); font-size: 0.8em; font-weight: 600; margin-left: 3px; opacity: 0.75; }
.thead { padding: 0 12px 8px; font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.thead span:not(:first-child), .r span:not(:first-child) { text-align: right; }
.rows { display: flex; flex-direction: column; gap: 3px; }
.r {
  /* flex: none — sin esto, con scroll interno las filas se encogen y el texto se solapa. */
  flex: none;
  position: relative; isolation: isolate; overflow: hidden;
  padding: 10px 12px; border-radius: 12px;
  font-family: var(--mono); font-size: clamp(13px, 3.9vw, 15px); font-weight: 500; letter-spacing: -0.02em;
  background: var(--field);
}
.r::before {
  content: ''; position: absolute; inset: 0 auto 0 0; z-index: -1;
  width: var(--p, 0%);
  background: linear-gradient(90deg, transparent, var(--bar));
}
/* Progreso como barra fina inferior: no cruza los números en km altos. */
.r::after {
  content: ''; position: absolute; left: 0; bottom: 0; z-index: -1;
  width: var(--p, 0%); height: 2px; border-radius: 2px;
  background: color-mix(in srgb, var(--accent-text) 55%, transparent);
}
.r span:last-child { font-weight: 600; }
.r .d { color: var(--muted); }
.r.km .d, .r.last .d { color: var(--text); font-weight: 600; }
body[data-mode="pista"] .r:not(.km):not(.last) { background: transparent; }
.r.last { background: color-mix(in srgb, var(--accent) 10%, var(--field)); }
.empty { padding: 28px 12px; text-align: center; color: var(--muted); font-size: 14px; }
.more { padding: 10px 12px; text-align: center; color: var(--muted); font-size: 12px; }

/* ---------- Footer & toast ---------- */
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 22px 4px 0; font-size: 12px; color: var(--muted); }
.foot a { text-decoration: none; font-weight: 600; }
.foot a:hover { color: var(--text); }

.toast {
  position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom)); z-index: 10;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  padding: 12px 18px; border-radius: 999px;
  background: var(--text); color: var(--bg); font-size: 14px; font-weight: 600;
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.5);
  transition: opacity .25s, transform .4s var(--ease-spring);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Escritorio ---------- */
@media (min-width: 920px) {
  .app { max-width: 1120px; padding-top: 28px; }
  .top { padding-bottom: 26px; }
  .layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
  .form { position: sticky; top: 24px; }
  .card { padding: 22px; }
  .rows { max-height: max(360px, 60vh); overflow-y: auto; overscroll-behavior: contain; padding-right: 6px; scrollbar-width: thin; }
}

@media (max-width: 360px) {
  .seg button { padding: 10px 8px; font-size: 14px; }
  .seg-sm svg { display: none; }
  .u { margin-right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}