/* ===== Design tokens ===== */
:root {
  --bg: #0b1220;
  --bg-elevated: #121b2e;
  --bg-card: #16213a;
  --border: #253552;
  --text: #eef2f8;
  --text-muted: #93a2c2;
  --text-faint: #5b6b8c;

  --brand: #34d399;
  --brand-strong: #10b981;
  --brand-soft: rgba(52, 211, 153, 0.14);

  --warn: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-nav: 0 -8px 24px rgba(0, 0, 0, 0.35);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fb;
    --bg-elevated: #ffffff;
    --bg-card: #ffffff;
    --border: #e3e8f2;
    --text: #101828;
    --text-muted: #5b6478;
    --text-faint: #9aa3b8;
    --brand-soft: rgba(16, 185, 129, 0.1);
    --shadow-card: 0 8px 24px rgba(16, 24, 40, 0.08);
    --shadow-nav: 0 -8px 24px rgba(16, 24, 40, 0.08);
  }
}

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

html,
body {
  height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

/* ===== App shell ===== */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: calc(var(--space-4) + var(--safe-top)) var(--space-5) var(--space-4);
  background: linear-gradient(180deg, var(--bg-elevated) 0%, rgba(11, 18, 32, 0) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.app-header .brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-header .brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
}

.app-header h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.app-header .subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.app-main {
  flex: 1;
  padding: 0 var(--space-5) calc(96px + var(--safe-bottom));
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

/* ===== Empty state (Etapa 1) ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-4);
  margin-top: var(--space-5);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.empty-state .icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--brand-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}

.empty-state h2 {
  font-size: 16px;
  font-weight: 700;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 34ch;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-2);
}

.tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
}

/* ===== Bottom nav ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-around;
  padding: var(--space-2) var(--space-3) calc(var(--space-2) + var(--safe-bottom));
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-nav);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 11px;
  font-weight: 600;
  padding: var(--space-2) 0;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}

.nav-item .nav-icon {
  font-size: 20px;
  line-height: 1;
}

.nav-item.active {
  color: var(--brand);
}

/* ===== Utility ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-card);
}

.bar {
  --pct: 0%;
  width: 100%;
  height: 10px;
  border-radius: var(--radius-pill);
  background: var(--border);
  overflow: hidden;
}

.bar > span {
  display: block;
  height: 100%;
  width: var(--pct);
  background: linear-gradient(90deg, var(--brand-strong), var(--brand));
  border-radius: var(--radius-pill);
  transition: width 0.3s ease;
}

/* ===== View header ===== */
.view-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: var(--space-5) 0 var(--space-3);
}

.view-header h2 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.view-header .count {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Forms ===== */
.form-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.form-grid .span-2 {
  grid-column: 1 / -1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.field input {
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s ease;
}

.field input:focus {
  border-color: var(--brand);
}

.btn {
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  border: 1px solid transparent;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  color: #06251b;
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}

.btn-danger {
  background: transparent;
  border-color: transparent;
  color: var(--danger);
  font-size: 12px;
  padding: 6px 10px;
}

.form-actions {
  display: flex;
  gap: var(--space-2);
}

.btn-sm {
  padding: 7px 12px;
  font-size: 12px;
}

/* ===== Date navigation ===== */
.date-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.date-nav .icon-btn {
  font-size: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.date-nav .icon-btn:disabled {
  opacity: 0.3;
}

.date-nav-input {
  flex: 1;
  font-family: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}

/* ===== Meal blocks ===== */
.meal-block {
  margin-bottom: var(--space-3);
}

.meal-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.meal-title {
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.meal-title .pending {
  opacity: 0.6;
}

.meal-block-actions {
  display: flex;
  gap: 2px;
}

.meal-text {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.meal-items {
  list-style: none;
  font-size: 12px;
  color: var(--text-faint);
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meal-photo {
  margin-top: var(--space-3);
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.total-macros {
  margin-top: var(--space-3);
}

.macros {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.macros b {
  color: var(--text);
}

.running-totals {
  padding: var(--space-3);
}

/* ===== Food picker (meal form) ===== */
.food-picker-results {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.food-picker-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  color: var(--text);
  text-align: left;
}

.food-picker-item .portion {
  color: var(--text-faint);
  font-size: 11px;
}

.selected-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.selected-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}

.selected-item .info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.selected-item .name {
  font-size: 13px;
  font-weight: 600;
}

.selected-item .macros-inline {
  font-size: 11px;
  color: var(--text-faint);
}

.qty-stepper {
  display: flex;
  align-items: center;
  gap: 6px;
}

.qty-stepper button[data-action="inc"],
.qty-stepper button[data-action="dec"] {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 15px;
  line-height: 1;
}

.qty-stepper span {
  font-size: 13px;
  font-weight: 700;
  min-width: 22px;
  text-align: center;
}

/* ===== Dashboard sessions ===== */
.session-group {
  margin-top: var(--space-6);
}

.session-group:first-of-type {
  margin-top: var(--space-5);
}

.session-group > * + * {
  margin-top: var(--space-3);
}

.session-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

.session-header .session-icon {
  font-size: 16px;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

/* ===== Dashboard ===== */
.section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: var(--space-5) 0 var(--space-2);
  display: block;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: var(--space-5) 0 var(--space-2);
}

.section-title-row .section-title {
  margin: 0;
}

.mentality-card {
  margin-top: var(--space-4);
  text-align: center;
}

.mentality-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.mentality-card blockquote {
  font-size: 14px;
  font-style: italic;
  color: var(--text);
}

.today-tag {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.bar-row:last-child {
  margin-bottom: 0;
}

.bar-row .bar-label {
  font-size: 12px;
  color: var(--text-muted);
  min-width: 92px;
}

.bar-row .bar {
  flex: 1;
}

.bar-row .bar-pct {
  font-size: 12px;
  font-weight: 700;
  min-width: 40px;
  text-align: right;
}

.status-line {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.fuel-numbers {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.fuel-numbers b {
  color: var(--text);
}

.dash-meal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.dash-meal-row:last-child {
  border-bottom: none;
}

.dash-meal-row .pending {
  opacity: 0.6;
}

.rating-card {
  margin-top: var(--space-3);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.macro-bars .bar-row {
  margin-bottom: var(--space-3);
}

.guidance-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.guidance-card b {
  color: var(--text);
}

.guidance-actions ul {
  list-style: none;
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guidance-actions li {
  font-size: 13px;
  color: var(--text);
}

.supplement-row {
  display: flex;
  justify-content: space-around;
  gap: var(--space-2);
}

.supplement-toggle {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.quick-form {
  margin-top: var(--space-3);
}

.review-link {
  margin-top: var(--space-3);
  width: 100%;
}

/* ===== Weekly review ===== */
.stat-card {
  margin-bottom: var(--space-3);
}

.stat-title {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 15px;
  font-weight: 700;
}

.review-lists {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.review-list-title {
  font-size: 12px;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.review-list-title.worked {
  color: var(--brand);
}

.review-list-title.adjust {
  color: var(--danger);
}

.review-list ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.review-list li {
  font-size: 13px;
  color: var(--text);
  padding-left: 14px;
  position: relative;
}

.review-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

.hydration-quick-add {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.state-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: var(--space-5);
}

/* ===== Training week ===== */
.week-card {
  margin-bottom: var(--space-3);
}

.week-title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.week-days {
  display: flex;
  gap: var(--space-2);
}

.week-day {
  flex: 1;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 0;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-faint);
}

.week-day.done {
  color: var(--brand);
  border-color: rgba(52, 211, 153, 0.35);
  background: var(--brand-soft);
}

.week-bonus {
  margin-top: var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
}

.week-bonus b {
  color: var(--text);
}

.tag-obligatorio {
  color: var(--warn);
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.3);
}

.workout-meta {
  display: flex;
  gap: var(--space-4);
  font-size: 13px;
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.workout-meta b {
  color: var(--text);
}

.photo-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hidden-file-input {
  display: none;
}

.photo-preview img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  max-height: 220px;
  width: 100%;
  object-fit: cover;
}

/* ===== Food list ===== */
.food-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.food-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}

.food-item .info h3 {
  font-size: 14px;
  font-weight: 700;
}

.food-item .info .portion {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 2px;
}

.food-item .macros {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  gap: 8px;
}

.food-item .macros b {
  color: var(--text);
}

.food-item .actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-btn {
  background: none;
  border: none;
  font-size: 16px;
  padding: 6px;
  border-radius: 8px;
  color: var(--text-faint);
}

.icon-btn:hover {
  background: var(--brand-soft);
  color: var(--brand);
}

.empty-inline {
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  padding: var(--space-5) 0;
}