/* ============================================
   VOLTA CYCLING — SHARED STYLES
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ---- CSS VARIABLES ---- */
:root {
  --bg: #0a0a0a;
  --surface-1: #141414;
  --surface-2: #1a1a1a;
  --surface-3: #222222;
  --accent: #E8FF00;
  --accent-dim: rgba(232, 255, 0, 0.15);
  --accent-glow: 0 0 20px rgba(232, 255, 0, 0.35);
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --border: #222222;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --nav-h: 72px;
  --radius: 8px;
  --transition: 0.25s ease;
}

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  opacity: 0;
  animation: fadeInBody 0.5s ease 0.1s forwards;
}

@keyframes fadeInBody {
  to { opacity: 1; }
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font-body); }
ul { list-style: none; }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: 0.02em; line-height: 1.05; }

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: #fff;
  box-shadow: var(--accent-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--accent-glow);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 12px;
}

/* ---- LAYOUT ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-sm {
  padding: 64px 0;
}

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav drawer */
.nav-drawer {
  position: fixed;
  top: var(--nav-h);
  right: -100%;
  width: min(320px, 85vw);
  height: calc(100vh - var(--nav-h));
  background: var(--surface-1);
  border-left: 1px solid var(--border);
  z-index: 999;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-drawer.open { right: 0; }

.nav-drawer a {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.nav-drawer a:hover,
.nav-drawer a.active { color: var(--accent); }

.nav-drawer .btn { margin-top: 20px; width: 100%; justify-content: center; }

/* ---- PAGE HEADER ---- */
.page-header {
  padding: calc(var(--nav-h) + 64px) 0 64px;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(64px, 10vw, 120px);
  color: var(--text-primary);
}

.page-header p {
  color: var(--text-secondary);
  font-size: 18px;
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- FOOTER ---- */
.footer {
  background: #0d0d0d;
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 240px;
  line-height: 1.7;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-col ul li a:hover { color: var(--text-primary); }

.footer-col address {
  font-style: normal;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.footer-col address strong {
  color: var(--text-primary);
  font-weight: 600;
  display: block;
  margin-top: 12px;
}

.footer-col address strong:first-child { margin-top: 0; }

.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.social-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition);
}

.social-links a:hover { color: var(--accent); }

.social-icon {
  width: 32px;
  height: 32px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.social-links a:hover .social-icon {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ---- CARDS ---- */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition);
}

.card:hover {
  border-color: rgba(232, 255, 0, 0.25);
  background: var(--surface-2);
}

/* ---- MODAL ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 480px;
  padding: 40px;
  transform: scale(0.94) translateY(12px);
  transition: transform 0.25s ease;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.modal-close:hover { color: var(--text-primary); border-color: var(--text-secondary); }

.modal h2 {
  font-size: 32px;
  margin-bottom: 6px;
}

.modal p.modal-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 28px;
}

/* ---- FORM STYLES ---- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 16px;
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group input[readonly] {
  opacity: 0.5;
  cursor: default;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-secondary);
}

.form-error {
  color: #ff5a5a;
  font-size: 12px;
  margin-top: 6px;
  display: none;
}

.form-error.show { display: block; }

/* Success state */
.success-state {
  text-align: center;
  padding: 32px 0;
  display: none;
}

.success-state.show { display: block; }

.success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.success-state h3 {
  font-size: 32px;
  margin-bottom: 8px;
}

.success-state p {
  color: var(--text-secondary);
}

/* ---- SCROLL REVEAL ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- DIVIDER ---- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ---- BADGE ---- */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.badge-accent {
  background: var(--accent);
  color: #000;
}

.badge-outline {
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* ---- MARQUEE ---- */
.marquee-wrap {
  overflow: hidden;
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee-track:hover { animation-play-state: paused; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.marquee-item {
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.marquee-item .stars { color: var(--accent); }

/* ---- GRAIN OVERLAY ---- */
.grain-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ---- DIFFICULTY DOTS ---- */
.diff-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.diff-easy { background: #4ade80; }
.diff-medium { background: var(--accent); }
.diff-hard { background: #ff5a5a; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-right .btn { display: none; }
  .nav-toggle { display: flex; }

  .section { padding: 64px 0; }
  .section-sm { padding: 48px 0; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .modal { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn { padding: 12px 20px; font-size: 13px; }
}