/* ============ GymApp — tema oscuro ============ */

:root {
  --bg: #0D0D0D;
  --surface: #161616;
  --surface-elevated: #1F1F1F;
  --border: #2A2A2A;
  --text: #F0F0F0;
  --text-secondary: #888888;
  --accent: #C8F45A;
  --danger: #FF5555;
  --radius: 6px;
  --font-display: 'DM Mono', monospace;
  --font-body: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 72px; /* hueco para bottom nav */
}

[x-cloak] { display: none !important; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; }
h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1rem; }

/* ============ Layout ============ */

.sidebar { display: none; }

.content {
  padding: 16px;
  max-width: 860px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  body { font-size: 15px; padding-bottom: 0; }
  .bottom-nav { display: none; }

  .sidebar {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 220px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 24px 12px;
    gap: 4px;
  }
  .sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; margin-top: 24px; }
  .content { margin-left: 220px; max-width: none; padding: 24px 32px; }
}

.logo { font-size: 1.3rem; padding: 0 12px; letter-spacing: -0.5px; }
.logo span, .login-logo span { color: var(--accent); }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  text-align: left;
}
.nav-link:hover { background: var(--surface-elevated); color: var(--text); }
.nav-link.active { color: var(--accent); background: var(--surface-elevated); }
.nav-link.logout { margin-top: auto; }

.nav-icon { display: inline-flex; width: 20px; height: 20px; }
.nav-icon svg { width: 100%; height: 100%; }

/* Bottom nav móvil */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 50;
}
.bottom-nav button {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 0 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.65rem;
  cursor: pointer;
}
.bottom-nav button.active { color: var(--accent); }
.bottom-nav .nav-icon { width: 22px; height: 22px; }

/* ============ Cards ============ */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.card-grid .card { margin-bottom: 0; }
.card-wide { grid-column: 1 / -1; }
@media (max-width: 420px) {
  .card-grid { grid-template-columns: 1fr; }
}

.card-title {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.card-meta { color: var(--text-secondary); font-size: 0.8rem; }
.card-highlight { font-family: var(--font-display); font-size: 1.2rem; }
.card-head-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.card-head-row .card-title { margin-bottom: 0; }

/* ============ Métricas (firma visual) ============ */

.metric-value {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 2.5rem;
  color: var(--accent);
  line-height: 1;
}
.metric-value.sm { font-size: 1.4rem; }
.metric-unit {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-left: 4px;
}
.metric-diff { font-family: var(--font-display); font-size: 0.85rem; margin-left: 10px; }
.metric-diff.down { color: var(--accent); }
.metric-diff.up { color: var(--danger); }
.streak { margin-top: 14px; }

.mono { font-family: var(--font-display); }
.accent { color: var(--accent); }
.muted { color: var(--text-secondary); }

/* ============ Headers de vista ============ */

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.view-date { color: var(--text-secondary); font-family: var(--font-display); font-size: 0.85rem; }
.header-actions { display: flex; gap: 8px; }
.section-sub { margin: 24px 0 12px; color: var(--text-secondary); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; }

/* ============ Botones ============ */

.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 80ms ease, background 120ms ease;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* Foco visible por teclado (no interfiere con el clic de ratón gracias a :focus-visible) */
.btn:focus-visible,
.btn-icon:focus-visible,
.nav-link:focus-visible,
.seg button:focus-visible,
.range-tabs button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary { background: var(--accent); color: #0D0D0D; }
.btn-primary:hover:not(:disabled) { filter: brightness(1.08); }

.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover:not(:disabled) { background: var(--surface-elevated); }

.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: rgba(255, 85, 85, 0.1); }

.btn-link { background: none; border: none; color: var(--accent); padding: 4px 0; font-size: 0.9rem; }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 14px; font-size: 1rem; }

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 6px 8px;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.btn-icon:hover { background: var(--surface-elevated); }
.btn-icon.danger:hover { color: var(--danger); }

/* ============ Formularios ============ */

label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 10px;
}

input, select, textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px; /* evita zoom de iOS */
  padding: 10px 12px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
input[type='number'] { font-family: var(--font-display); }

.form-card { padding: 20px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row label { flex: 1; min-width: 140px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 0 12px; }

.inline-select { width: auto; margin-top: 0; padding: 6px 10px; font-size: 0.85rem; }

/* ============ Listas ============ */

.item-list { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 12px; }
.item-list.compact { gap: 8px; }
.item-list.compact .card { padding: 12px 16px; }

.item-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; margin-bottom: 0; }
.item-title { font-weight: 500; font-size: 1rem; }
.item-title.sm { font-size: 0.9rem; }
.clickable { cursor: pointer; }
.grow { flex: 1; min-width: 0; }

.spoon-thumb { width: 48px; height: 48px; border-radius: var(--radius); object-fit: cover; flex-shrink: 0; }
.spoon-thumb-lg { width: 100%; max-height: 200px; border-radius: var(--radius); object-fit: cover; margin: 8px 0 16px; }
.instructions-text { white-space: pre-wrap; }

/* Resultados de recetas en cuadrícula: imagen de banner arriba + cuerpo debajo */
.recipe-grid { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
@media (max-width: 640px) { .recipe-grid { grid-template-columns: 1fr; } }
.recipe-card { padding: 0; margin-bottom: 0; overflow: hidden; cursor: pointer; display: flex; flex-direction: column; transition: border-color 0.15s; }
.recipe-card:hover { border-color: var(--accent); }
.recipe-card-img { width: 100%; height: 150px; object-fit: cover; display: block; background: var(--surface-elevated); }
.recipe-card-noimg { display: flex; align-items: center; justify-content: center; font-size: 2.2rem; }
.recipe-card-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.recipe-card-label { color: var(--accent); font-size: 0.7rem; letter-spacing: 0.05em; text-transform: uppercase; font-family: var(--font-display); }

.ex-grid { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
@media (max-width: 640px) { .ex-grid { grid-template-columns: 1fr; } }
.ex-card { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 0; }
.ex-icon {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: 50%;
  background: var(--surface-elevated); color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
}
.ex-icon svg { width: 20px; height: 20px; }
.ex-badge {
  display: inline-block; margin-top: 6px; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--border); font-size: 0.7rem; color: var(--text-secondary);
}
.ex-badge.accent { border-color: var(--accent); color: var(--accent); }

.search-results {
  list-style: none;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: -4px 0 12px;
  max-height: 220px;
  overflow-y: auto;
}
.search-results li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}
.search-results li:last-child { border-bottom: none; }
.search-results li:hover { background: var(--surface); }
.search-results li.muted { cursor: default; }

/* ============ Sesión de entreno ============ */

.session-timer {
  margin-left: auto;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
}

.quick-create {
  margin: -4px 0 12px;
  padding: 10px 14px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.quick-create p.muted { margin: 0 0 8px; font-size: 0.8rem; }
.quick-create .form-row { align-items: end; gap: 8px; }

.exercise-card { padding: 16px 20px; }
.exercise-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }

.last-session {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin: 10px 0;
}
.last-session .mono { color: var(--text); }

.sets-table { margin: 10px 0; }
.sets-header, .set-row {
  display: grid;
  grid-template-columns: 24px 1fr 1fr 1fr 32px;
  gap: 8px;
  align-items: center;
}
.sets-header {
  color: var(--text-secondary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.set-row { margin-bottom: 6px; }
.set-row input { margin-top: 0; padding: 8px 10px; text-align: center; }
.set-num { font-family: var(--font-display); color: var(--text-secondary); text-align: center; }

.sets-readonly { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.set-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: 0.85rem;
}
.set-chip .accent, .set-chip { color: var(--text); }

.routine-ex-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.routine-ex-row input { margin-top: 0; width: 70px; padding: 8px; text-align: center; }

/* ============ Macros / progreso ============ */

.macro-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}
.macro-label { font-size: 0.8rem; color: var(--text-secondary); }
.macro-nums { font-family: var(--font-display); font-size: 0.8rem; white-space: nowrap; }

.progress {
  height: 6px;
  background: var(--bg);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 300ms ease;
}
.progress-fill.over { background: var(--danger); }

/* ============ Nutrición ============ */

.date-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}
.date-label { font-size: 1rem; }

.meal-list { list-style: none; }
.meal-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.meal-row:last-child { border-bottom: none; }
.empty-meal { font-size: 0.8rem; padding: 4px 0; }

.macro-preview {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  margin: 12px 0;
}
.macro-preview-row { display: flex; justify-content: center; gap: 20px; margin-top: 8px; font-size: 0.9rem; color: var(--text-secondary); }
.macro-preview-row b { color: var(--text); font-weight: 500; }

/* Conmutador segmentado */
.seg {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  margin: 0 0 12px;
}
.seg button {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 8px 6px;
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
}
.seg button.active { background: var(--surface-elevated); color: var(--accent); }
.hint { font-size: 0.8rem; margin-top: 6px; }

/* Código de barras / escáner */
.barcode-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.barcode-row input { flex: 1; margin: 0; }
.scan-video {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  object-fit: cover;
  margin: 8px 0;
}

/* Ingredientes del plato */
.ingredient-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.ingredient-row:last-of-type { border-bottom: none; }
.ing-grams { width: 70px; text-align: right; }
.recipe-totals {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.recipe-totals b { color: var(--text); }
.recipe-totals .accent, .ingredient-row .accent { color: var(--accent); }

.search-bar input { margin-top: 0; }

/* ============ Tablas ============ */

.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 10px 8px 0;
  border-bottom: 1px solid var(--border);
}
.data-table td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--border); }
.data-table tr:last-child td { border-bottom: none; }

.pager { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 12px; }

/* ============ Gráficas ============ */

.chart-wrap { position: relative; height: 240px; }

/* ============ Tabs de rango ============ */

.range-tabs { display: flex; gap: 4px; }
.range-tabs button {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  padding: 4px 10px;
  cursor: pointer;
}
.range-tabs button.active { color: var(--accent); border-color: var(--accent); }

/* ============ Modales ============ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}
@media (min-width: 768px) {
  .modal-backdrop { align-items: center; }
}

.modal {
  position: relative;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
}
.modal h3 { margin-bottom: 16px; }
.modal h4 { margin: 12px 0 8px; color: var(--text-secondary); font-size: 0.8rem; }
.modal input, .modal select { background: var(--surface); }

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.modal-close {
  position: absolute;
  top: 12px; right: 12px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px 8px;
}
.modal-close:hover { color: var(--text); }

/* ============ Estados vacíos ============ */

.empty-state { text-align: center; padding: 24px 12px; color: var(--text-secondary); }
.empty-state p { margin-bottom: 8px; }

/* ============ Login ============ */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  width: 100%;
  max-width: 360px;
  text-align: center;
}
.login-logo { font-size: 2rem; margin-bottom: 4px; }
.login-sub { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 24px; }
.login-card input { margin-bottom: 12px; text-align: center; }
.login-error { color: var(--danger); font-size: 0.85rem; margin-top: 12px; }
.login-alt { color: var(--text-secondary); font-size: 0.85rem; margin-top: 20px; }
.login-alt a { color: var(--accent); text-decoration: none; }

/* ===== Asistente de IA (coach) ===== */
.coach-fab {
  position: fixed;
  right: 20px;
  bottom: 84px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: #0D0D0D;
  border: none;
  font-size: 1.4rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  z-index: 90;
}
@media (min-width: 768px) {
  .coach-fab { bottom: 24px; }
}
.coach-modal {
  display: flex;
  flex-direction: column;
  max-height: 80vh;
}
.coach-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 12px 0;
  padding-right: 4px;
}
.coach-bubble {
  max-width: 85%;
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  white-space: pre-line;
}
.coach-bubble-user {
  align-self: flex-end;
  background: var(--accent);
  color: #0D0D0D;
}
.coach-bubble-assistant {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
}
.coach-bubble-assistant b { font-weight: 600; }
.coach-bubble-assistant ul { margin: 4px 0 0 18px; padding: 0; }
.coach-bubble-assistant li { margin-bottom: 2px; }
.coach-input-row {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.coach-input-row input { flex: 1; margin: 0; }