/* iHack 2026 — CTF Competition Website */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #151d2e;
  --bg-card-hover: #1a2438;
  --accent: #00ff9f;
  --accent-dim: #00cc7f;
  --accent-glow: rgba(0, 255, 159, 0.15);
  --accent-blue: #00d4ff;
  --text-primary: #e8edf5;
  --text-secondary: #8b9cb8;
  --text-muted: #5a6a85;
  --border: rgba(0, 255, 159, 0.12);
  --border-hover: rgba(0, 255, 159, 0.35);
  --border-hover-strong: rgba(0, 255, 159, 0.75);
  --glow-card:
    0 20px 56px rgba(0, 255, 159, 0.28),
    0 0 48px rgba(0, 255, 159, 0.16),
    0 0 0 2px rgba(0, 255, 159, 0.22);
  --glow-card-featured:
    0 24px 64px rgba(0, 255, 159, 0.32),
    0 0 56px rgba(0, 255, 159, 0.2),
    0 0 32px rgba(255, 159, 67, 0.14),
    0 0 0 2px rgba(0, 255, 159, 0.28);
  --error: #ff6b6b;
  --success: #00ff9f;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.3s cubic-bezier(0.34, 1.25, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Background effects */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 255, 159, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 159, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -1;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-bracket { color: var(--accent); }
.logo-year { color: var(--accent-blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.nav-cta {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--accent-dim) !important;
  color: var(--bg-primary) !important;
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-hover);
}

.btn-outline:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: 8rem 1.5rem 4rem;
  max-width: 1140px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.glitch {
  position: relative;
  color: var(--text-primary);
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  color: var(--accent-blue);
  animation: glitch-1 3s infinite;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch::after {
  color: var(--accent);
  animation: glitch-2 3s infinite;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
  0%, 90%, 100% { transform: translate(0); }
  92% { transform: translate(-2px, 1px); }
  94% { transform: translate(2px, -1px); }
}

@keyframes glitch-2 {
  0%, 90%, 100% { transform: translate(0); }
  91% { transform: translate(2px, 1px); }
  93% { transform: translate(-2px, -1px); }
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Terminal */
.hero-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.prompt { color: var(--accent); }
.terminal-output { color: var(--text-secondary); }
.terminal-output.success { color: var(--success); }

.cursor-blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-header {
  margin-bottom: 3rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
}

.section-desc {
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

/* Program */
.program-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.program-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
}

.program-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.program-card-featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: center;
  border-color: var(--border-hover);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 255, 159, 0.05) 100%);
}

.program-icon {
  font-size: 2rem;
  line-height: 1;
}

.program-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.program-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.program-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.program-link:hover { text-decoration: underline; }

/* CTF Rounds */
.rounds-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.round-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: all var(--transition);
}

.round-card:hover {
  border-color: var(--border-hover-strong);
  transform: translateY(-8px) scale(1.01);
  background: linear-gradient(180deg, rgba(0, 255, 159, 0.06) 0%, var(--bg-card) 40%);
  box-shadow: var(--glow-card);
}

.round-card-preliminary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-dim));
  opacity: 0.6;
  transition: opacity var(--transition);
}

.round-card-preliminary:hover::before {
  opacity: 1;
  height: 4px;
  box-shadow: 0 0 20px rgba(0, 255, 159, 0.7);
}

.round-card-final {
  border-color: var(--border);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 212, 255, 0.04) 100%);
}

.round-card-final::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent));
  opacity: 0.6;
  transition: opacity var(--transition);
}

.round-card-final:hover {
  border-color: var(--border-hover-strong);
  transform: translateY(-8px) scale(1.01);
  background: linear-gradient(135deg, rgba(0, 255, 159, 0.08) 0%, var(--bg-card) 50%);
  box-shadow: var(--glow-card-featured);
}

.round-card-final:hover::before {
  opacity: 1;
  height: 4px;
  box-shadow: 0 0 24px rgba(0, 255, 159, 0.8);
}

.round-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.round-badge-final { color: var(--accent-blue); }

.round-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.round-details {
  list-style: none;
  margin-bottom: 1rem;
}

.round-details li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.round-details strong { color: var(--text-primary); }

.round-card > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.categories-header {
  margin-top: 1rem;
  margin-bottom: 2rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.about-text strong { color: var(--text-primary); }

.about-list {
  list-style: none;
  margin-top: 1.5rem;
}

.about-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

.about-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.card-icon { font-size: 2rem; margin-bottom: 1rem; }

.about-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.about-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* Details */
.details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
}

.detail-card:hover {
  border-color: var(--border-hover-strong);
  transform: translateY(-8px) scale(1.01);
  background: linear-gradient(180deg, rgba(0, 255, 159, 0.06) 0%, var(--bg-card) 45%);
  box-shadow: var(--glow-card);
}

.detail-card:hover .detail-icon {
  transform: scale(1.15);
  filter: drop-shadow(0 0 8px rgba(0, 255, 159, 0.5));
}

.detail-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  transition: transform var(--transition), filter var(--transition);
}

.detail-card h3 {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}

.detail-card p {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.detail-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.guidelines-header,
.mechanics-header {
  margin-top: 4rem;
}

.guidelines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.guideline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}

.guideline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0.35;
  transition: opacity var(--transition), box-shadow var(--transition);
}

.guideline-card:hover {
  border-color: var(--border-hover-strong);
  transform: translateY(-8px) scale(1.01);
  background: linear-gradient(180deg, rgba(0, 255, 159, 0.06) 0%, var(--bg-card) 45%);
  box-shadow: var(--glow-card);
}

.guideline-card:hover::before {
  opacity: 1;
  width: 4px;
  box-shadow: 0 0 20px rgba(0, 255, 159, 0.8);
}

.guideline-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.guideline-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1;
  transition: transform var(--transition), filter var(--transition);
}

.guideline-card:hover .guideline-icon {
  transform: scale(1.2);
  filter: drop-shadow(0 0 10px rgba(0, 255, 159, 0.55));
}

.guideline-card > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.guideline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.guideline-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1.25rem;
  position: relative;
}

.guideline-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.category-card-new {
  position: relative;
}

.category-badge {
  display: inline-block;
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.scoring-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.scoring-box h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.scoring-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
}

.scoring-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1.25rem;
  position: relative;
}

.scoring-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.scoring-box-final {
  margin-top: 2rem;
  border-left-color: var(--accent-blue);
}

.mechanics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.mechanic-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
}

.mechanic-card:hover {
  border-color: var(--border-hover-strong);
  transform: translateY(-8px) scale(1.01);
  background: linear-gradient(180deg, rgba(0, 255, 159, 0.05) 0%, var(--bg-card) 45%);
  box-shadow: var(--glow-card);
}

.mechanic-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  transition: transform var(--transition), filter var(--transition);
}

.mechanic-card:hover .mechanic-icon {
  transform: scale(1.15);
  filter: drop-shadow(0 0 8px rgba(0, 255, 159, 0.5));
}

.mechanic-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.mechanic-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Categories */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
}

.category-card:hover {
  background: linear-gradient(180deg, rgba(0, 255, 159, 0.05) 0%, var(--bg-card-hover) 50%);
  border-color: var(--border-hover-strong);
  border-left-color: var(--accent);
  border-left-width: 4px;
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--glow-card);
}

.category-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0.7;
}

.category-card h3 {
  font-size: 1.1rem;
  margin: 0.5rem 0 0.5rem;
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.timeline-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Page hero (inner pages) */
.page-hero {
  padding: 8rem 0 3rem;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin: 0.5rem 0 1rem;
}

.page-hero p {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 1.5rem;
  font-size: 1.05rem;
}

.page-hero-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-hero-meta span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
}

.nav-active {
  box-shadow: 0 0 0 2px var(--bg-primary);
}

.section-register {
  padding-top: 2rem;
}

/* CTA section */
.cta-section {
  padding: 4rem 0 5rem;
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  padding: 2.5rem 3rem;
}

.cta-content h2 {
  font-size: 1.75rem;
  margin: 0.25rem 0 0.5rem;
}

.cta-content p {
  color: var(--text-secondary);
  max-width: 480px;
}

.form-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  margin-top: 2rem;
}

.success-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Registration Form */
.registration-form {
  max-width: 720px;
  margin: 0 auto;
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.form-section-title {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.form-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.required { color: var(--error); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input.error,
.form-group select.error {
  border-color: var(--error);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.input-readonly {
  opacity: 0.7;
  cursor: not-allowed;
}

.info-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.info-box p {
  margin-bottom: 0.75rem;
}

.info-box p:last-child {
  margin-bottom: 0;
}

.info-box ul {
  margin: 0.5rem 0 0.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.error-msg {
  display: block;
  font-size: 0.8rem;
  color: var(--error);
  margin-top: 0.35rem;
  min-height: 1.2em;
}

.checkbox-group { margin-top: 0.5rem; }

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.checkbox-label input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkmark {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-hover);
  border-radius: 4px;
  margin-top: 2px;
  transition: all var(--transition);
  position: relative;
}

.checkbox-label input:checked + .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-label input:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
}

.link {
  color: var(--accent);
  text-decoration: underline;
}

.member-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  margin-bottom: 1rem;
  position: relative;
}

.member-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.member-block-header h4 {
  font-size: 0.9rem;
  color: var(--accent);
}

.remove-member {
  background: none;
  border: none;
  color: var(--error);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font-sans);
}

.remove-member:hover { text-decoration: underline; }

/* Success state */
.form-success {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  padding: 3rem 2rem;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-glow);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--accent);
  margin: 0 auto 1.5rem;
}

.form-success h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.form-success p {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.success-ref {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin: 1.5rem 0 !important;
}

.success-ref strong { color: var(--accent); }

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-links ul { list-style: none; }

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

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

.footer-contact p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 968px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 6rem;
    min-height: auto;
  }

  .hero-terminal { order: -1; }

  .about-grid,
  .details-grid,
  .categories-grid,
  .program-grid,
  .guidelines-grid,
  .mechanics-grid {
    grid-template-columns: 1fr 1fr;
  }

  .program-card-featured {
    grid-column: span 2;
    grid-template-columns: 1fr;
  }

  .rounds-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 23, 0.98);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .about-grid,
  .details-grid,
  .categories-grid,
  .program-grid,
  .guidelines-grid,
  .mechanics-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .program-card-featured {
    grid-column: span 1;
  }

  .hero-stats { gap: 1.5rem; }

  .footer-content { grid-template-columns: 1fr; }

  .cta-box {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
  }

  .cta-content p { margin: 0 auto; }
}