/* Off Balance — shared design system */
:root {
  --color-bg: #0D1117;
  --color-surface: #161B22;
  --color-border: #21262D;
  --color-accent: #C5F135;
  --color-text: #F0EDE6;
  --color-muted: #8A8A8A;
  --color-danger: #FF4D4D;
  --radius-card: 6px;
  --radius-btn: 4px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --nav-height: 80px;
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(197, 241, 53, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(197, 241, 53, 0.02) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.015'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  color: var(--color-text);
  font-family: var(--font-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }

.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.text-display {
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}
.text-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 600;
  line-height: 1.1;
}
.text-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.text-body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
}
.text-accent { color: var(--color-accent); }
.text-danger { color: var(--color-danger); }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (min-width: 768px) {
  .container { padding: 0 48px; }
}

/* Navigation */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
}
@media (min-width: 768px) {
  .site-nav { padding: 20px 48px; }
}
.site-nav.scrolled {
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-logo { display: flex; flex-direction: column; gap: 2px; }
.nav-logo .logo-main {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}
.nav-logo .logo-sub {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--color-text); }

.btn-nav-cta {
  display: none;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  transition: background 0.2s ease, color 0.2s ease;
}
.btn-nav-cta:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(13, 17, 23, 0.97);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.nav-overlay.open {
  opacity: 1;
  visibility: visible;
}
.nav-overlay a {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}
.nav-overlay .btn-nav-cta {
  display: inline-block;
  font-size: 13px;
  padding: 14px 32px;
  margin-top: 16px;
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .btn-nav-cta { display: inline-block; }
  .hamburger { display: none; }
  .nav-overlay { display: none; }
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  text-align: center;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary.full-width { width: 100%; }

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 13px 32px;
  border-radius: var(--radius-btn);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s ease;
}
.btn-outline:hover { border-color: var(--color-text); }
.btn-outline.full-width { width: 100%; }

/* Session cards */
.session-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, opacity 0.3s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}
.session-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.session-card:hover {
  border-color: rgba(197, 241, 53, 0.3);
  transform: translateY(-2px);
}
.session-card:hover::before { opacity: 1; }

.card-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.card-tag {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.card-tag.city { color: var(--color-accent); }
.card-tag.level { color: var(--color-muted); }

.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}
.card-coach, .card-datetime, .card-location {
  font-size: 14px;
  color: var(--color-muted);
}
.card-location { display: flex; align-items: flex-start; gap: 8px; }
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}
.register-link {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.spots-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.spots-bar {
  height: 2px;
  background: var(--color-border);
  border-radius: 2px;
  flex: 1;
}
.spots-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 0.4s ease;
}
.spots-text {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* Grid fade */
.sessions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.sessions-grid.is-fading {
  opacity: 0;
  transform: translateY(8px);
}
@media (min-width: 640px) {
  .sessions-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .sessions-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Pulse dot */
.pulse-dot {
  width: 6px; height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* City tiles */
.cities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (min-width: 900px) {
  .cities-grid { grid-template-columns: repeat(4, 1fr); }
}
.city-tile {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: border-color 0.2s ease;
}
.city-tile.active {
  border-color: rgba(197, 241, 53, 0.3);
}
.city-tile.active:hover { border-color: rgba(197, 241, 53, 0.5); }
.city-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.city-status {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.city-status.active { color: var(--color-accent); }
.city-status.soon { color: var(--color-muted); }

/* Pillars */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 900px) {
  .pillars { grid-template-columns: repeat(3, 1fr); }
}
.pillar {
  padding: 32px 24px;
  border-bottom: 1px solid var(--color-border);
}
@media (min-width: 900px) {
  .pillar { border-bottom: none; border-right: 1px solid var(--color-border); padding: 0 32px; }
  .pillar:last-child { border-right: none; }
}
.pillar-num { color: var(--color-accent); font-family: var(--font-display); font-size: 11px; font-weight: 600; letter-spacing: 0.1em; margin-bottom: 12px; }
.pillar-title { font-family: var(--font-display); font-size: 20px; font-weight: 600; margin-bottom: 12px; }

/* Philosophy */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}
@media (min-width: 900px) {
  .philosophy-grid { grid-template-columns: 3fr 2fr; gap: 64px; }
}
.philosophy-mark {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 24px;
}
.philosophy-text { font-size: 18px; line-height: 1.7; color: var(--color-muted); }

blockquote.quote-block {
  position: relative;
  padding: 24px 0 0 24px;
}
.quote-mark {
  position: absolute;
  top: -20px;
  left: 0;
  font-family: var(--font-display);
  font-size: 120px;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.5;
  pointer-events: none;
}
.quote-block p {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text);
  position: relative;
  z-index: 1;
}
.quote-block cite {
  display: block;
  margin-top: 16px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-style: normal;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 0 60px;
}
.hero .text-display {
  font-size: clamp(40px, 10vw, 96px);
}
@media (min-width: 768px) {
  .hero .text-display {
    font-size: clamp(52px, 8vw, 96px);
  }
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.hero-stat {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }

/* Forms */
.form-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 8px;
}
.form-input, .form-select {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 0.2s ease;
}
.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-trust {
  text-align: center;
  margin-top: 16px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.form-error { color: var(--color-danger); font-size: 14px; margin-bottom: 12px; }
.form-loading { color: var(--color-muted); font-size: 14px; margin-bottom: 12px; }

/* Filter bar */
.filter-bar {
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
  background: rgba(22, 27, 34, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}
.filter-bar.scrolled {
  background: rgba(13, 17, 23, 0.92);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Off Court banner */
.offcourt-banner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #161B22 0%, rgba(197, 241, 53, 0.06) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
}
.offcourt-watermark {
  position: absolute;
  left: 48px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: clamp(80px, 15vw, 200px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  opacity: 0.08;
  pointer-events: none;
  white-space: nowrap;
}
.offcourt-content { position: relative; z-index: 1; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--color-text); }
.wear-brand { color: var(--color-accent); }
.wear-brand:hover { text-decoration: underline; }

/* Session detail */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding: calc(var(--nav-height) + 40px) 0 80px;
}
@media (min-width: 900px) {
  .detail-layout { grid-template-columns: 3fr 2fr; align-items: start; }
}
.detail-form-panel {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}
.date-block {
  display: inline-block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin: 24px 0;
}
.date-block .date-line {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.meta-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.meta-tag {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  padding: 6px 12px;
  border-radius: var(--radius-btn);
}
.breadcrumb {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
}

/* Waitlist page */
.waitlist-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
  position: relative;
}
.waitlist-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(80px, 20vw, 240px);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text);
  opacity: 0.06;
  pointer-events: none;
  white-space: nowrap;
}
.waitlist-inner { position: relative; z-index: 1; width: 100%; max-width: 480px; text-align: center; }

/* Confirmed */
.confirmed-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
  text-align: center;
}
.confirmed-check {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  color: var(--color-accent);
}
.confirmed-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: 32px; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  grid-column: 1 / -1;
}
.empty-state .text-body { margin: 12px 0 24px; }

/* Section spacing */
.section { padding: 80px 0; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.section-link {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}
.section-link:hover { text-decoration: underline; }

.page-header {
  padding: calc(var(--nav-height) + 48px) 0 32px;
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.success-panel {
  text-align: center;
  padding: 24px 0;
}
.success-panel p {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  line-height: 1.5;
}