:root {
  --bg: #0a0d12;
  --card: #131821;
  --card2: #1a212c;
  --line: #263041;
  --text: #eef2f7;
  --muted: #8b97a8;
  --accent: #c6ff3d;
  --accent-ink: #0a0d12;
  --warn: #ffb547;
  --bad: #ff5d5d;
  --good: #3ddc97;
  --blue: #5ab0ff;
  --r: 16px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  color-scheme: dark;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, 'SF Pro Text', system-ui, sans-serif;
  padding: calc(var(--safe-t) + 12px) 16px calc(84px + var(--safe-b));
  max-width: 640px; margin: 0 auto; overflow-x: hidden;
}
h1 { font-size: 28px; line-height: 1.15; margin: 4px 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 22px 0 8px; font-weight: 600; }
h3 { font-size: 17px; margin: 0; }
p { margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.grow { flex: 1; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; margin: 10px 0; }
.card.hero { background: linear-gradient(160deg, #1b2410 0%, var(--card) 55%); border-color: #34451a; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 700; background: var(--card2); border: 1px solid var(--line); }
.badge.md { background: var(--accent); color: var(--accent-ink); border: 0; }
.chip { display: inline-flex; gap: 6px; align-items: center; padding: 6px 10px; border-radius: 10px; background: var(--card2); font-size: 14px; }
.chip b { font-variant-numeric: tabular-nums; }

button, .btn {
  font: inherit; font-weight: 600; border: 0; border-radius: 12px; padding: 11px 16px;
  background: var(--card2); color: var(--text); border: 1px solid var(--line); cursor: pointer;
}
button.primary { background: var(--accent); color: var(--accent-ink); border: 0; }
button.ghost { background: transparent; }
button.danger { color: var(--bad); }
button:disabled { opacity: 0.5; }
button.full { width: 100%; }
.seg { display: flex; gap: 6px; }
.seg button { flex: 1; padding: 9px 0; }
.seg button.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

input, textarea, select {
  font: inherit; width: 100%; padding: 11px 12px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--card2); color: var(--text); outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 70px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input[type='checkbox'] { width: 22px; height: 22px; accent-color: var(--accent); }
input[type='time'] { width: auto; min-width: 110px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }

/* Plan */
.block { border-left: 3px solid var(--accent); }
.block.t-equipo, .block.t-partido { border-left-color: var(--blue); }
.block.t-prevencion, .block.t-movilidad, .block.t-recuperacion { border-left-color: var(--good); }
.block.t-gym, .block.t-fuerza { border-left-color: var(--warn); }
.block.done { opacity: 0.55; }
.block .head { display: flex; gap: 10px; align-items: flex-start; }
.block .when { font-size: 13px; color: var(--muted); }
.ex { padding: 9px 0; border-top: 1px solid var(--line); }
.ex:first-of-type { border-top: 0; }
.ex .dose { color: var(--accent); font-weight: 600; font-size: 15px; }
.ex .key { color: var(--muted); font-size: 14px; }
.alert { background: #2a1f0c; border: 1px solid #5a4215; color: #ffd28a; border-radius: 12px; padding: 10px 12px; font-size: 15px; }
.quote { font-style: italic; text-align: center; color: var(--accent); margin: 18px 0 6px; font-weight: 600; }

/* Semana */
.day { display: grid; grid-template-columns: 62px 1fr; gap: 10px; align-items: start; }
.day .date { text-align: center; padding-top: 2px; }
.day .date b { display: block; font-size: 24px; line-height: 1; }
.day .date span { font-size: 12px; color: var(--muted); text-transform: uppercase; }
.day.today { border-color: var(--accent); }
.toggle { display: flex; align-items: center; gap: 8px; margin: 4px 0; }
.toggle .lbl { flex: 1; }

/* Chat */
.msgs { display: flex; flex-direction: column; gap: 8px; padding-bottom: 130px; }
.msg { max-width: 86%; padding: 10px 13px; border-radius: 16px; white-space: normal; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg ul { margin: 4px 0; padding-left: 18px; }
.composer {
  position: fixed; left: 0; right: 0; bottom: calc(64px + var(--safe-b)); padding: 8px 12px;
  background: linear-gradient(transparent, var(--bg) 25%); max-width: 640px; margin: 0 auto;
}
.composer .box { display: flex; gap: 8px; align-items: flex-end; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 6px; }
.composer textarea { min-height: 40px; max-height: 140px; border: 0; background: transparent; padding: 9px 8px; }
.composer button { padding: 9px 13px; border-radius: 13px; }
.typing { color: var(--muted); font-size: 14px; }

/* Registro */
.spark { width: 100%; height: 90px; }
.sess { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); }
.sess:first-child { border-top: 0; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.kpi { background: var(--card2); border-radius: 12px; padding: 10px; }
.kpi b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.kpi span { font-size: 12px; color: var(--muted); }

/* Nav */
#tabs {
  position: fixed; bottom: 0; left: 0; right: 0; display: flex; justify-content: space-around;
  background: rgba(10, 13, 18, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--line); padding: 6px 4px calc(6px + var(--safe-b)); z-index: 10;
}
#tabs a { color: var(--muted); text-decoration: none; font-size: 11px; display: flex; flex-direction: column; align-items: center; gap: 1px; padding: 4px 10px; }
#tabs a span { font-size: 21px; filter: grayscale(1); opacity: 0.7; }
#tabs a.on { color: var(--accent); }
#tabs a.on span { filter: none; opacity: 1; }

#toast {
  position: fixed; left: 50%; bottom: calc(92px + var(--safe-b)); transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 12px; font-weight: 600; font-size: 14px;
  opacity: 0; transition: 0.25s; pointer-events: none; z-index: 20; max-width: 90vw;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 0.8s linear infinite; vertical-align: -3px; }
@keyframes spin { to { transform: rotate(360deg); } }
.center { text-align: center; }
.empty { text-align: center; padding: 30px 10px; color: var(--muted); }