:root {
  --bg: #0c1117;
  --bg-elevated: #141c26;
  --bg-card: #1a2433;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8edf4;
  --text-muted: #8b9cb3;
  --accent: #3ee8b5;
  --accent-dim: rgba(62, 232, 181, 0.15);
  --warm: #ff8c5a;
  --warm-dim: rgba(255, 140, 90, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(62, 232, 181, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(255, 140, 90, 0.06), transparent);
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 9999;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* Header */
.hero {
  margin-bottom: 2.5rem;
  animation: fadeUp 0.7s ease both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(62, 232, 181, 0.25);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 36em;
  margin: 0;
}

/* Nav tabs */
.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  position: sticky;
  top: 0.75rem;
  z-index: 100;
  padding: 0.5rem;
  background: rgba(12, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  animation: fadeUp 0.7s 0.1s ease both;
}

.nav-tabs button {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.nav-tabs button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-tabs button.active {
  color: var(--bg);
  background: var(--accent);
}

/* Sections */
.section {
  display: none;
  animation: fadeUp 0.4s ease both;
}

.section.active {
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title span {
  color: var(--accent);
  font-size: 0.85em;
}

/* Cards grid */
.grid {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.card-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
}

.card-value small {
  font-size: 0.55em;
  font-weight: 600;
  color: var(--text-muted);
}

.card-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Progress bar */
.progress-wrap {
  margin-top: 1.5rem;
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.progress-track {
  height: 10px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #5eead4);
  transition: width 1s ease;
}

/* Chart bars */
.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bar-row {
  display: grid;
  grid-template-columns: 72px 1fr 48px;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.bar-name {
  color: var(--text-muted);
}

.bar-track {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s ease;
}

.bar-val {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* Macro rings */
.macro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.macro-item {
  text-align: center;
}

.macro-ring {
  width: 88px;
  height: 88px;
  margin: 0 auto 0.5rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  position: relative;
}

.macro-ring::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--bg-card);
}

.macro-ring span {
  position: relative;
  z-index: 1;
}

/* Meals */
.meal-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.meal-card {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
}

.meal-card h4 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.meal-time {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
}

.meal-options {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.meal-kcal {
  font-size: 0.8rem;
  color: var(--warm);
  margin-top: 0.35rem;
}

/* Principles */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tag-list li {
  padding: 0.4rem 0.75rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.principles-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.principles-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
}

.principles-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Calendar */
.calendar-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.filter-chip {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-chip:hover,
.filter-chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 0.65rem;
}

.day-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  transition: transform 0.2s, border-color 0.2s;
  cursor: default;
}

.day-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

.day-card.rest {
  opacity: 0.75;
}

.day-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.day-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  margin: 0.15rem 0;
}

.day-sport {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.sport-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.day-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  line-height: 1.4;
}

/* Week timeline */
.week-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.week-block {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1rem;
  align-items: start;
}

.week-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent);
  opacity: 0.9;
}

.week-theme {
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.week-focus {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th,
.data-table td {
  padding: 0.65rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Checklist */
.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.check-box {
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  transition: background 0.2s;
}

.check-box.checked {
  background: var(--accent);
  box-shadow: inset 0 0 0 2px var(--bg-card);
}

/* Sport legend */
.sport-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Footer */
.footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

.loading {
  text-align: center;
  padding: 4rem;
  color: var(--text-muted);
}

.error {
  background: var(--warm-dim);
  border: 1px solid rgba(255, 140, 90, 0.3);
  color: var(--warm);
  padding: 1rem;
  border-radius: var(--radius);
  margin: 2rem 0;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .wrap {
    padding: 1.25rem 1rem 3rem;
  }

  .nav-tabs {
    top: 0;
    border-radius: 0;
    margin-left: -1rem;
    margin-right: -1rem;
    border-left: none;
    border-right: none;
  }

  .bar-row {
    grid-template-columns: 60px 1fr 40px;
    font-size: 0.8rem;
  }
}