@import url('https://fonts.googleapis.com/css2?family=Anton&family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --ink: #0b0d12;
  --ink-soft: #171a22;
  --panel: #12151d;
  --panel-raised: #1a1e29;
  --line: #262b38;
  --text: #eef1f8;
  --text-dim: #9aa3b8;
  --accent: #ff5a3c;
  --accent-dark: #d9421f;
  --accent-soft: rgba(255, 90, 60, 0.14);
  --lime: #c6ff4a;
  --ok: #3ddc97;
  --shadow: 0 24px 60px rgba(0, 0, 0, .45);

  --fig: #eef1f8;
  --fig-accent: var(--accent);
  --fig-dot: var(--lime);
  --eq: #3a4256;
  --ground: #3a4256;
  --zone: var(--accent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}
h1, h2, h3, .display { font-family: 'Anton', Inter, sans-serif; font-weight: 400; letter-spacing: .01em; text-transform: uppercase; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }
.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; }
[hidden] { display: none !important; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 0 clamp(18px, 4vw, 56px); }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(11, 13, 18, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent); color: var(--ink); font-family: 'Anton', sans-serif; font-size: 1.05rem;
}
.brand span { font-family: 'Anton', sans-serif; font-size: 1.05rem; letter-spacing: .03em; }
.brand small { display: block; margin-top: 2px; color: var(--text-dim); font-size: .62rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }

.tabs-nav { display: flex; gap: 4px; margin-left: 8px; }
.tabs-nav button {
  padding: 10px 16px; background: none; border: 0; border-radius: 999px;
  color: var(--text-dim); font-weight: 800; font-size: .82rem; letter-spacing: .04em; text-transform: uppercase;
}
.tabs-nav button:hover { color: var(--text); }
.tabs-nav button.active { color: var(--ink); background: var(--accent); }

.profile-area { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.profile-select {
  padding: 9px 14px; background: var(--panel-raised); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); font-weight: 700; font-size: .85rem; max-width: 170px;
}
.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  background: var(--panel-raised); border: 1px solid var(--line); color: var(--text); font-size: 1.1rem; font-weight: 800;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 860px) {
  .topbar { flex-wrap: wrap; }
  .tabs-nav { order: 3; width: 100%; overflow-x: auto; }
  .profile-area { margin-left: auto; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(48px, 8vw, 100px) 0 clamp(40px, 6vw, 70px);
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(255,90,60,.20), transparent 60%),
    radial-gradient(700px 400px at 5% 110%, rgba(198,255,74,.10), transparent 60%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}
.hero .eyebrow { color: var(--accent); font-weight: 800; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 14px; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: .96; margin: 0 0 18px; max-width: 900px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { max-width: 620px; color: var(--text-dim); font-size: 1.08rem; margin: 0 0 32px; }

.stat-row { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; max-width: 900px; }
.stat-card {
  padding: 18px 18px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
}
.stat-card b { display: block; font-family: 'Anton', sans-serif; font-size: 2.1rem; color: var(--lime); }
.stat-card span { color: var(--text-dim); font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
@media (max-width: 700px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Section heads ---------- */
.section-head { display: flex; flex-wrap: wrap; gap: 20px; align-items: end; justify-content: space-between; margin: 0 0 26px; }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); margin: 4px 0 0; }
.section-head .eyebrow { color: var(--accent); font-weight: 800; font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; margin: 0; }

main { padding: 46px 0 90px; }

/* ---------- Day tabs + filters ---------- */
.day-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 22px; }
.day-tab {
  display: flex; gap: 12px; align-items: center; padding: 14px 16px; min-height: 64px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; text-align: left;
}
.day-tab b { font-family: 'Anton', sans-serif; color: var(--accent); font-size: 1.2rem; }
.day-tab span { font-weight: 700; font-size: .88rem; }
.day-tab:hover { border-color: var(--accent); }
.day-tab.active { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.day-tab.active b { color: var(--ink); }
@media (max-width: 760px) { .day-tabs { grid-template-columns: repeat(2, 1fr); } }

.toolbar { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.search-box input {
  min-width: 240px; padding: 11px 16px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; color: var(--text); outline: none;
}
.search-box input:focus { border-color: var(--accent); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.filter-chip {
  padding: 8px 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 999px;
  font-size: .82rem; font-weight: 700; color: var(--text-dim);
}
.filter-chip.active { color: var(--ink); background: var(--lime); border-color: var(--lime); }

.builder-bar {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;
  padding: 14px 18px; margin-bottom: 22px; background: var(--panel-raised); border: 1px solid var(--accent); border-radius: 14px;
}
.builder-bar strong { color: var(--lime); }
.btn {
  padding: 11px 18px; border-radius: 10px; border: 1px solid var(--accent); background: var(--accent);
  color: var(--ink); font-weight: 800; font-size: .85rem; letter-spacing: .02em;
}
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---------- Exercise grid/cards ---------- */
.exercise-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
@media (max-width: 1080px) { .exercise-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .exercise-grid { grid-template-columns: 1fr; } }

.exercise-card {
  position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  transition: transform .16s ease, border-color .16s ease;
}
.exercise-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.exercise-card.selectable { cursor: pointer; }
.exercise-card.selected { border-color: var(--lime); box-shadow: 0 0 0 2px var(--lime) inset; }
.exercise-visual { aspect-ratio: 1.4; background: var(--panel); border-bottom: 1px solid var(--line); }
.exercise-art { position: relative; width: 100%; height: 100%; }
.exercise-art img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.exercise-art-fallback, .exercise-art-fallback svg { width: 100%; height: 100%; display: block; }
.exercise-art-fallback[hidden], .exercise-art img[hidden] { display: none; }
.exercise-number {
  position: absolute; top: 12px; left: 12px; z-index: 2; display: grid; place-items: center;
  width: 32px; height: 32px; border-radius: 50%; background: var(--ink); color: var(--text);
  font-family: 'Anton', sans-serif; font-size: .82rem; border: 1px solid var(--line);
}
.select-check {
  position: absolute; top: 12px; right: 12px; z-index: 2; width: 26px; height: 26px; border-radius: 8px;
  background: var(--ink); border: 1px solid var(--line); display: grid; place-items: center; font-weight: 900; color: transparent;
}
.exercise-card.selected .select-check { background: var(--lime); border-color: var(--lime); color: var(--ink); }
.exercise-body { padding: 18px; }
.exercise-meta { display: flex; justify-content: space-between; color: var(--accent); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
.exercise-card h3 { font-family: Inter, sans-serif; font-weight: 800; text-transform: none; letter-spacing: 0; font-size: 1.08rem; min-height: 2.6em; margin: 0 0 6px; }
.equipment { color: var(--text-dim); font-size: .86rem; min-height: 2.4em; margin: 0 0 14px; }
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); }
.view-btn { background: none; border: 0; color: var(--accent); font-weight: 800; font-size: .85rem; text-decoration: underline; text-underline-offset: 3px; padding: 0; }
.complete-label { display: inline-flex; gap: 7px; align-items: center; color: var(--text-dim); font-size: .8rem; font-weight: 700; }
.complete-label input { width: 17px; height: 17px; accent-color: var(--ok); }
.empty { padding: 60px 0; text-align: center; color: var(--text-dim); }

/* ---------- Dialog ---------- */
dialog {
  width: min(1000px, calc(100vw - 28px)); max-height: calc(100vh - 28px); padding: 0; overflow: auto;
  color: var(--text); background: var(--ink-soft); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(4,5,8,.78); backdrop-filter: blur(4px); }
.dialog-close {
  position: sticky; top: 14px; float: right; z-index: 5; width: 38px; height: 38px; margin: 14px 14px -50px 0;
  border-radius: 50%; background: var(--panel-raised); border: 1px solid var(--line); color: var(--text); font-size: 1.4rem; line-height: 1;
}
.dialog-layout { display: grid; grid-template-columns: .95fr 1.05fr; }
@media (max-width: 820px) { .dialog-layout { grid-template-columns: 1fr; } }

.gallery { padding: 22px; border-right: 1px solid var(--line); }
@media (max-width: 820px) { .gallery { border-right: 0; border-bottom: 1px solid var(--line); } }
.gallery-frame { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; aspect-ratio: 1.4; }
.gallery-frame .exercise-art { width: 100%; height: 100%; }
.gallery-steps { display: flex; gap: 8px; margin-top: 12px; }
.gallery-steps button {
  flex: 1; padding: 10px; border-radius: 10px; background: var(--panel); border: 1px solid var(--line); color: var(--text-dim); font-weight: 800; font-size: .78rem; letter-spacing: .04em; text-transform: uppercase;
}
.gallery-steps button.active { background: var(--lime); color: var(--ink); border-color: var(--lime); }
.zone-pill { display: inline-flex; margin-top: 14px; padding: 7px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: .78rem; font-weight: 800; }

.video-box { margin-top: 16px; }
.video-box label { display: block; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px; }
.video-row { display: flex; gap: 8px; }
.video-row input { flex: 1; padding: 9px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; color: var(--text); }
.video-embed { margin-top: 12px; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16/9; }
.video-embed iframe { width: 100%; height: 100%; border: 0; display: block; }

.dialog-copy { padding: 30px 30px 34px; }
.dialog-copy .eyebrow { color: var(--accent); font-weight: 800; font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; margin: 0; }
.dialog-copy h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 8px 0 14px; text-transform: none; font-family: Inter, sans-serif; font-weight: 900; }
.prescription { display: inline-block; margin: 0 0 20px; padding: 7px 12px; border-radius: 8px; background: var(--accent); color: var(--ink); font-size: .8rem; font-weight: 800; }
.equipment-line { color: var(--text-dim); }
.muscle-tags { display: flex; flex-wrap: wrap; gap: 7px; padding: 0; margin: 14px 0 24px; list-style: none; }
.muscle-tags li { padding: 5px 10px; border-radius: 8px; background: var(--panel); border: 1px solid var(--line); font-size: .76rem; font-weight: 700; }
.dialog-copy h3 { margin: 22px 0 10px; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-dim); font-family: Inter, sans-serif; font-weight: 800; }
.dialog-copy ol, .dialog-copy ul { padding-left: 1.2rem; margin: 0; }
.dialog-copy li { margin-bottom: 7px; }
.cue { padding: 13px 15px; border-radius: 10px; background: var(--accent-soft); border-left: 3px solid var(--accent); }
.dialog-complete { display: inline-flex; gap: 8px; align-items: center; margin-top: 20px; font-weight: 800; }
.dialog-complete input { width: 19px; height: 19px; accent-color: var(--ok); }

/* ---------- Seguimiento ---------- */
.history-list { display: grid; gap: 12px; }
.history-item { padding: 18px 20px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.history-item .when { font-weight: 800; }
.history-item .meta { color: var(--text-dim); font-size: .85rem; }
.history-item .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.history-item .tags span { padding: 4px 9px; background: var(--panel-raised); border-radius: 999px; font-size: .72rem; font-weight: 700; color: var(--text-dim); }
.history-item .del { background: none; border: 0; color: var(--text-dim); font-size: 1.1rem; }
.history-item .del:hover { color: var(--accent); }

.chart-row { display: grid; gap: 10px; }
.chart-bar { display: grid; grid-template-columns: 110px 1fr 40px; align-items: center; gap: 10px; }
.chart-bar .label { font-size: .82rem; font-weight: 700; color: var(--text-dim); }
.chart-bar .track { height: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.chart-bar .fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--lime)); }
.chart-bar .count { font-size: .82rem; font-weight: 800; text-align: right; }

.panel-card { padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; }
.two-col { display: grid; grid-template-columns: 1.3fr .9fr; gap: 20px; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.profile-modal-body { padding: 26px; display: grid; gap: 14px; max-width: 420px; }
.profile-modal-body input { padding: 12px 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; color: var(--text); }
.profile-list { display: grid; gap: 8px; margin-top: 6px; }
.profile-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
.profile-row button.select { background: none; border: 0; color: var(--text); font-weight: 800; text-align: left; flex: 1; }
.profile-row button.remove { background: none; border: 0; color: var(--text-dim); }
.profile-row button.remove:hover { color: var(--accent); }

.principles { padding: 60px 0; background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; }
@media (max-width: 800px) { .principle-grid { grid-template-columns: 1fr; } }
.principle-grid article { padding: 22px; background: var(--panel-raised); border: 1px solid var(--line); border-radius: 14px; }
.principle-grid b { color: var(--accent); font-family: 'Anton', sans-serif; font-size: 1.5rem; }
.principle-grid h3 { margin: 18px 0 8px; font-size: 1.05rem; text-transform: none; font-family: Inter, sans-serif; font-weight: 800; }
.principle-grid p { margin: 0; color: var(--text-dim); font-size: .9rem; }

.source-note { max-width: 900px; padding: 60px 0 20px; color: var(--text-dim); }
.source-note h2 { font-size: 1.6rem; }
.source-note a { color: var(--accent); text-underline-offset: 3px; }

footer.site-footer { padding: 30px 0 60px; color: var(--text-dim); font-size: .82rem; text-align: center; }