:root {
  --bg-canvas: #0b0b0d;
  --bg-surface: #202023;
  --bg-surface-hover: #2a2a2e;
  --text-primary: #f3f3f1;
  --text-muted: #c0c4cc;
  --accent-primary: #dc2626;
  --accent-secondary: #991b1b;
  --border-subtle: #323238;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 12px 32px -4px rgba(0, 0, 0, 0.45);
  --glow-accent: 0 0 24px -4px var(--accent-primary);
  --radius-std: 4px;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, Consolas, "Courier New", monospace;
}

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

html {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  overflow-wrap: anywhere;
  hyphens: auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-std);
  object-fit: cover;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.prose {
  max-width: 70ch;
}

.prose p, .prose ul, .prose ol {
  margin-bottom: 1.25rem;
}

.prose h2 {
  font-size: 1.75rem;
  margin: 2.25rem 0 0.75rem;
  line-height: 1.25;
}

.prose h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: 1.75rem 0 0.5rem;
}

/* Header & Navigation */
.site-header {
  position: relative;
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.1rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-align: left;
}

.brand-mark {
  width: 14px;
  height: 14px;
  background-color: var(--accent-primary);
  border-radius: 2px;
  display: inline-block;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-desktop a {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  position: relative;
  padding: 0.25rem 0;
}

.nav-desktop a::after,
.secondary-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width 0.25s var(--ease-kinetic);
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="page"] {
  color: var(--text-primary);
}

.nav-desktop a:hover::after,
.nav-desktop a[aria-current="page"]::after,
.secondary-link:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 0.4rem 0.75rem;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 1.5rem;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu ul {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  display: block;
  padding: 0.35rem 0;
}

/* Buttons & Links */
.btn-primary {
  display: inline-block;
  background-color: var(--accent-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.8rem 1.35rem;
  border-radius: var(--radius-std);
  border: 1px solid var(--accent-primary);
  cursor: pointer;
  transition: transform 0.25s var(--ease-kinetic), box-shadow 0.25s var(--ease-kinetic);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-elevation), var(--glow-accent);
}

.secondary-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 3px;
}

/* Connected Pathway / Beatline Stations */
.beatline-wrapper {
  position: relative;
  padding-left: 2.5rem;
  margin: 2.5rem 0;
}

.beatline-wrapper::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background-color: var(--accent-primary);
}

.station {
  position: relative;
  margin-bottom: 3.75rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 2rem;
}

.station-crimson {
  background-color: var(--accent-primary);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.station-crimson .text-muted,
.station-crimson .mono-label {
  color: #f3f3f1;
}

.station::before {
  content: "";
  position: absolute;
  left: -2.1rem;
  top: 2rem;
  width: 12px;
  height: 12px;
  background-color: var(--accent-primary);
  border: 2px solid var(--bg-canvas);
  border-radius: 2px;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.45rem;
}

.practice-stop {
  margin-top: 1.5rem;
  padding: 0.85rem 1.1rem;
  background-color: var(--bg-canvas);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-std);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Hero Section & Overlapping Photos */
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  line-height: 1.12;
  margin-bottom: 1.15rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 1.65rem;
  max-width: 60ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.photo-collage {
  position: relative;
  min-height: 360px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(12, 28px);
}

.collage-img-1 {
  grid-column: 1 / 9;
  grid-row: 1 / 8;
  z-index: 1;
  border: 2px solid var(--bg-canvas);
  width: 100%;
  height: 100%;
}

.collage-img-2 {
  grid-column: 5 / 13;
  grid-row: 4 / 10;
  z-index: 2;
  border: 2px solid var(--bg-canvas);
  width: 100%;
  height: 100%;
}

.collage-img-3 {
  grid-column: 2 / 10;
  grid-row: 7 / 13;
  z-index: 3;
  border: 2px solid var(--bg-canvas);
  width: 100%;
  height: 100%;
}

/* Cards with Overlapping Crimson Technique Badge */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.tech-card {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  overflow: hidden;
  transition: transform 0.25s var(--ease-kinetic), box-shadow 0.25s var(--ease-kinetic);
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevation);
}

.tech-card-media {
  position: relative;
  aspect-ratio: 4 / 3;
}

.tech-card-media img {
  width: 100%;
  height: 100%;
  border-radius: 0;
}

.tech-badge {
  position: absolute;
  bottom: -12px;
  left: 1rem;
  background-color: var(--accent-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-std);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tech-card-body {
  padding: 1.5rem 1.25rem 1.25rem;
}

.tech-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.tech-card-body p {
  font-size: 0.94rem;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
}

/* Count-Along Pattern Strip */
.pattern-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.5rem;
  margin: 1.25rem 0;
  background-color: var(--bg-canvas);
  padding: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
}

.beat-cell {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 0.65rem 0.35rem;
  text-align: center;
  font-family: var(--font-mono);
}

.beat-cell.accent-hit {
  border-color: var(--accent-primary);
  background-color: #2b1414;
}

.beat-count {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.beat-stroke {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

.beat-drum {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Check Rows & Expandable Details */
.check-list {
  display: grid;
  gap: 0.65rem;
  margin: 1.25rem 0;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 0.9rem 1rem;
}

.check-box {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-weight: 700;
}

details.group-panel {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  margin-bottom: 0.75rem;
  padding: 0.9rem 1.15rem;
}

details.group-panel summary {
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

details.group-panel summary::after {
  content: "+";
  color: var(--accent-primary);
  font-size: 1.1rem;
}

details.group-panel[open] summary::after {
  content: "−";
}

details.group-panel p {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Tables & Forms */
.table-wrap {
  overflow-x: auto;
  margin: 1.25rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-canvas);
  font-size: 0.92rem;
}

th, td {
  border: 1px solid var(--border-subtle);
  padding: 0.75rem 0.9rem;
  text-align: left;
}

th {
  font-family: var(--font-mono);
  color: var(--text-muted);
  background-color: var(--bg-surface);
}

.form-grid {
  display: grid;
  gap: 1.1rem;
  max-width: 620px;
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  padding: 0.7rem 0.85rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.output-panel {
  margin-top: 1.25rem;
  padding: 1rem;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-std);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
}

/* Page Header */
.page-banner {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 2.75rem 0;
  margin-bottom: 2.25rem;
}

.page-banner h1 {
  font-size: clamp(1.85rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 0.6rem;
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* Reveal Animation */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

.js-enabled .reveal {
  opacity: 0;
  transform: translateY(16px);
}

.js-enabled .reveal.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .menu-toggle {
    display: inline-block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .pattern-strip {
    grid-template-columns: repeat(4, 1fr);
  }
  .beatline-wrapper {
    padding-left: 1.5rem;
  }
  .beatline-wrapper::before {
    left: 0.35rem;
  }
  .station::before {
    left: -1.45rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}