:root {
  --bg: #eef1ea;
  --panel: #fbfaf5;
  --card: #fffdf8;
  --ink: #18211d;
  --muted: #657066;
  --line: #d7dccf;
  --accent: #173f35;
  --accent-2: #b85f32;
  --good: #2d6f4f;
  --warn: #b8871b;
  --danger: #9d3e37;
  --neutral: #44616d;
  --shadow: 0 20px 50px rgba(24, 33, 29, 0.12);
  --nav-bg: rgba(238, 241, 234, 0.78);
  --code-bg: rgba(23, 63, 53, 0.08);
  --code-border: rgba(23, 63, 53, 0.18);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1311;
    --panel: rgba(16, 26, 23, 0.94);
    --card: #11201c;
    --ink: #edf6f1;
    --muted: #9eb1a8;
    --line: #244038;
    --accent: #49b897;
    --accent-2: #d8743e;
    --good: #57d98f;
    --warn: #f0b23b;
    --danger: #e06b5f;
    --neutral: #58a6c6;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.42);
    --nav-bg: rgba(10, 19, 17, 0.88);
    --code-bg: rgba(73, 184, 151, 0.12);
    --code-border: rgba(73, 184, 151, 0.28);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 0%, rgba(184, 95, 50, 0.16), transparent 34rem),
    linear-gradient(135deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 88%, #c8d3cc 12%) 100%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--ink);
  font-family: "Aptos", "Segoe UI", sans-serif;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  padding: 2rem clamp(1rem, 4vw, 4rem) 1rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 4.8rem);
  letter-spacing: -0.06em;
  line-height: 0.94;
  margin-bottom: 0;
  max-width: 13ch;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 3.1rem);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}

p {
  color: var(--muted);
  line-height: 1.55;
}

code {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 0.35rem;
  color: var(--accent);
  padding: 0.05rem 0.3rem;
}

.eyebrow {
  color: var(--accent-2);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  margin-bottom: 0.55rem;
  text-transform: uppercase;
}

.lead {
  font-size: 1.1rem;
  max-width: 56rem;
}

.status-chip {
  background: var(--accent);
  border-radius: 999px;
  color: #fff;
  padding: 0.8rem 1.1rem;
  text-align: right;
  white-space: nowrap;
}

.status-chip span {
  display: block;
  font-size: 0.72rem;
  opacity: 0.75;
  text-transform: uppercase;
}

.status-chip strong {
  font-size: 1.2rem;
}

.nav {
  backdrop-filter: blur(14px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.7rem clamp(1rem, 4vw, 4rem);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav a {
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--accent);
  flex: 0 0 auto;
  font-size: 0.87rem;
  font-weight: 700;
  padding: 0.55rem 0.85rem;
  text-decoration: none;
}

.nav a:hover {
  background: var(--panel);
  border-color: var(--line);
}

.nav a.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.deck {
  display: grid;
  gap: 1.2rem;
  padding: 1.2rem clamp(1rem, 4vw, 4rem) 4rem;
}

.slide {
  background: var(--panel);
  border: 1px solid rgba(215, 220, 207, 0.9);
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
  padding: clamp(1.2rem, 3vw, 2.4rem);
}

.hero-grid,
.two-col {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
}

.section-head {
  align-items: start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.metric-grid,
.card-grid {
  display: grid;
  gap: 0.8rem;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-grid > .metric-grid {
  align-self: start;
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 1rem 0;
}

.card-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric,
.card,
.panel,
.callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.metric span {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  font-size: clamp(1.3rem, 2vw, 2rem);
  letter-spacing: -0.04em;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-2);
}

.metric.good,
.good-card {
  border-left: 0.45rem solid var(--good);
}

.metric.warn,
.warn-card {
  border-left: 0.45rem solid var(--warn);
}

.metric.neutral {
  border-left: 0.45rem solid var(--neutral);
}

.tag,
.pill {
  border-radius: 999px;
  display: inline-flex;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.32rem 0.62rem;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag.good,
.pill.good {
  background: rgba(45, 111, 79, 0.14);
  color: var(--good);
}

.tag.warn,
.pill.warn {
  background: rgba(184, 135, 27, 0.16);
  color: var(--warn);
}

.tag.danger,
.pill.danger {
  background: rgba(157, 62, 55, 0.14);
  color: var(--danger);
}

.tag.neutral,
.pill.neutral {
  background: rgba(68, 97, 109, 0.14);
  color: var(--neutral);
}

@media (prefers-color-scheme: dark) {
  .status-chip {
    background: color-mix(in srgb, var(--accent) 25%, #08110e 75%);
  }

  .nav a:hover {
    background: color-mix(in srgb, var(--card) 92%, #20302a 8%);
  }

  .metric,
  .card,
  .panel,
  .callout,
  .slide {
    border-color: var(--line);
  }

  tbody tr:hover {
    background: rgba(159, 209, 192, 0.06);
  }
}

table {
  border-collapse: collapse;
  font-size: 0.9rem;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.72rem 0.65rem;
  text-align: left;
  vertical-align: top;
}

tbody tr:last-child td {
  border-bottom: 0;
}

th {
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

tbody tr:hover {
  background: rgba(23, 63, 53, 0.035);
}

.calendar-table td:first-child {
  color: var(--accent);
  font-weight: 800;
  white-space: nowrap;
}

.stats-table td:first-child {
  color: var(--accent);
  font-weight: 800;
}

.rule-list p {
  border-bottom: 1px solid var(--line);
  margin-bottom: 0;
  padding: 0.7rem 0;
}

.rule-list p:last-child {
  border-bottom: 0;
}

.callout {
  border-left: 0.45rem solid var(--accent-2);
  margin-top: 1.2rem;
}

.week-calendar {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.day-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 0.4rem solid var(--neutral);
  border-radius: 1rem;
  display: grid;
  gap: 0.55rem;
  padding: 1rem;
}

.day-card p {
  margin-bottom: 0;
}

.day-card h3 {
  margin-bottom: 0;
}

.day-card-head {
  align-items: baseline;
  display: flex;
  gap: 0.55rem;
  justify-content: space-between;
}

.day-name {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.day-date {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.day-focus {
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.35;
}

.rest-day {
  border-top-color: var(--neutral);
}

.easy-day {
  border-top-color: var(--good);
}

.quality-day {
  border-top-color: var(--warn);
}

.race-day {
  border-top-color: var(--accent-2);
}

@media (max-width: 950px) {
  .topbar,
  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .status-chip {
    text-align: left;
    width: fit-content;
  }

  .hero-grid,
  .two-col,
  .week-calendar,
  .card-grid.two,
  .card-grid.three,
  .stats-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .day-card-head {
    align-items: start;
    flex-direction: column;
  }

  .slide {
    min-height: auto;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media print {
  body {
    background: #fff;
  }

  .nav {
    display: none;
  }

  .deck-meta {
    display: none;
  }

  .slide {
    box-shadow: none;
    min-height: auto;
    page-break-after: always;
  }
}