/* ===== CyberHeroesHQ — Cyber Labs Hub ===== */
/* Vibe: Advanced, premium, technical — missions were school; labs are the real thing.
   Dark cyber aesthetic with electric accent colors. */

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

:root {
  --navy-950: #060d1e;
  --navy-900: #0b1628;
  --navy-800: #0f1f3d;
  --sky-500:  #0ea5e9;
  --sky-400:  #38bdf8;
  --cyan-400: #22d3ee;
  --purple-500: #8b5cf6;
  --purple-400: #a78bfa;
  --green-500: #22c55e;
  --green-400: #4ade80;
  --amber-500: #f59e0b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --white: #ffffff;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Satoshi', system-ui, sans-serif;
  --container-max: 1160px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--navy-950);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.labs-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 13, 30, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(14, 165, 233, 0.15);
}

.labs-nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.labs-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  color: var(--white);
  font-size: 1rem;
}

.labs-brand-mark { font-size: 1.25rem; }

.labs-brand-tag {
  background: linear-gradient(90deg, var(--cyan-400), var(--purple-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  /* Fallback for browsers without background-clip: text support */
  color: var(--cyan-400);
}

@supports not (background-clip: text) {
  .labs-brand-tag {
    background: transparent;
    color: var(--cyan-400);
  }
}

@media (max-width: 767px) {
  .labs-brand-tag {
    background: transparent;
    -webkit-text-fill-color: var(--cyan-400);
    color: var(--cyan-400);
  }
}

.labs-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.9rem;
}

.labs-nav-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
  font-weight: 500;
}

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

.labs-nav-links a.active { color: var(--cyan-400); font-weight: 600; }

.labs-nav-cta {
  background: linear-gradient(135deg, var(--sky-500), var(--purple-500));
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 700 !important;
  font-size: 0.85rem !important;
  transition: opacity 0.2s !important;
}

.labs-nav-cta:hover { opacity: 0.9; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.labs-hero {
  padding: 96px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.labs-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 70%),
              radial-gradient(ellipse 60% 40% at 80% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.labs-hero-inner { max-width: 800px; margin: 0 auto; position: relative; }

.labs-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--cyan-400);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.labs-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.15;
  font-weight: 400;
  margin-bottom: 24px;
  color: var(--white);
}

.labs-hero-title em {
  font-style: italic;
  background: linear-gradient(90deg, var(--cyan-400), var(--purple-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  /* Fallback for browsers without background-clip: text support */
  color: var(--cyan-400);
}

@supports not (background-clip: text) {
  .labs-hero-title em {
    background: transparent;
    color: var(--cyan-400);
  }
}

@media (max-width: 767px) {
  .labs-hero-title em {
    background: transparent;
    -webkit-text-fill-color: var(--cyan-400);
    color: var(--cyan-400);
  }
}

.labs-hero-sub {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.labs-hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.labs-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--sky-500), var(--purple-500));
  color: var(--white);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: opacity 0.2s, transform 0.2s;
}

.labs-btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.labs-btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, border-color 0.2s;
}

.labs-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}

/* ── Positioning Banner ──────────────────────────────────────────────────── */
.labs-tier-banner {
  max-width: var(--container-max);
  margin: 0 auto 80px;
  padding: 0 24px;
}

.labs-tier-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 28px 40px;
  flex-wrap: wrap;
}

.labs-tier-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: 0 32px;
}

.labs-tier-icon { font-size: 2rem; }

.labs-tier-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.labs-tier-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.labs-tier-desc {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

.labs-tier-arrow {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.2);
  padding: 0 8px;
}

.labs-tier-step.tier-active .labs-tier-label { color: var(--cyan-400); }
.labs-tier-step.tier-active .labs-tier-name { color: var(--cyan-400); }
.labs-tier-step.tier-active .labs-tier-desc { color: rgba(34, 211, 238, 0.6); }

/* ── Lab Cards ────────────────────────────────────────────────────────────── */
.labs-grid-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px 100px;
}

.labs-section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 12px;
  text-align: center;
}

.labs-section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  text-align: center;
  margin-bottom: 12px;
}

.labs-section-sub {
  text-align: center;
  color: rgba(255, 255, 255, 0.55);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

.labs-cards {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.labs-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
  transition: border-color 0.25s, transform 0.25s;
}

.labs-card:hover {
  transform: translateY(-2px);
}

.labs-card.color-blue  { border-color: rgba(14, 165, 233, 0.2); }
.labs-card.color-blue:hover  { border-color: rgba(14, 165, 233, 0.45); }
.labs-card.color-green { border-color: rgba(34, 197, 94, 0.2); }
.labs-card.color-green:hover { border-color: rgba(34, 197, 94, 0.45); }
.labs-card.color-purple{ border-color: rgba(139, 92, 246, 0.2); }
.labs-card.color-purple:hover { border-color: rgba(139, 92, 246, 0.45); }

.labs-card-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}

.labs-card-number {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 8px;
}

.labs-card-title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 400;
  margin-bottom: 8px;
  line-height: 1.2;
}

.labs-card-tagline {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.color-blue  .labs-card-tagline { color: var(--sky-400); }
.color-green .labs-card-tagline { color: var(--green-400); }
.color-purple .labs-card-tagline { color: var(--purple-400); }

.labs-card-desc {
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.labs-card-prereq {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--amber-500);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  margin-bottom: 24px;
}

.labs-card-standards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 28px;
}

.labs-standard-chip {
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.labs-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--sky-400);
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background 0.2s, border-color 0.2s;
}

.labs-card-cta:hover {
  background: rgba(14, 165, 233, 0.2);
  border-color: rgba(14, 165, 233, 0.5);
}

.color-green .labs-card-cta {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--green-400);
}

.color-green .labs-card-cta:hover {
  background: rgba(34, 197, 94, 0.18);
}

.color-purple .labs-card-cta {
  background: rgba(139, 92, 246, 0.1);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--purple-400);
}

.color-purple .labs-card-cta:hover {
  background: rgba(139, 92, 246, 0.18);
}

/* ── Sidebar Stats ────────────────────────────────────────────────────────── */
.labs-card-sidebar {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.labs-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

.labs-stat-label { color: rgba(255, 255, 255, 0.45); }
.labs-stat-value { font-weight: 700; color: var(--white); }

.labs-difficulty-dots {
  display: flex;
  gap: 4px;
}

.labs-difficulty-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.labs-difficulty-dot.filled { background: var(--amber-500); }

.labs-badge-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.labs-badge-emoji { font-size: 2.5rem; }

.labs-badge-info .labs-badge-earns {
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.labs-badge-info .labs-badge-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
}

/* ── Arena Section ────────────────────────────────────────────────────────── */
.labs-arena-section {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, rgba(14, 165, 233, 0.06) 100%);
  border-top: 1px solid rgba(139, 92, 246, 0.2);
  border-bottom: 1px solid rgba(14, 165, 233, 0.15);
  padding: 80px 24px;
}

.labs-arena-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.labs-arena-text .labs-section-label { text-align: left; }

.labs-arena-text .labs-section-title {
  text-align: left;
  margin-bottom: 16px;
}

.labs-arena-text p {
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  margin-bottom: 28px;
}

.labs-arena-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.labs-arena-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.labs-arena-features li::before {
  content: '⚡';
  font-size: 1rem;
  flex-shrink: 0;
}

.labs-arena-mock {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 16px;
  padding: 28px;
}

.labs-arena-mock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.labs-arena-mock-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.labs-arena-live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--green-400);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.06em;
}

.labs-arena-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-400);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.labs-arena-schools {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.labs-arena-school-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
}

.labs-arena-school-name { color: rgba(255, 255, 255, 0.7); }

.labs-arena-school-score {
  font-weight: 700;
  color: var(--white);
}

.labs-arena-school-row.leader {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.labs-arena-school-row.leader .labs-arena-school-name { color: var(--purple-400); }

/* ── SEO / Why Labs Section ───────────────────────────────────────────────── */
.labs-why-section {
  padding: 80px 24px;
}

.labs-why-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.labs-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.labs-why-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: 28px;
}

.labs-why-icon { font-size: 2rem; margin-bottom: 14px; display: block; }

.labs-why-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--white);
}

.labs-why-card p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}

/* ── CTA ──────────────────────────────────────────────────────────────────── */
.labs-cta-section {
  padding: 80px 24px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.labs-cta-inner { max-width: 600px; margin: 0 auto; }

.labs-cta-inner h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 400;
  margin-bottom: 16px;
}

.labs-cta-inner p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.labs-cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
.labs-footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.labs-footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.labs-footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
}

.labs-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: center;
}

.labs-footer-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.labs-footer-links a:hover { color: rgba(255, 255, 255, 0.75); }

.labs-footer-legal {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.25);
  text-align: center;
}

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .labs-card {
    grid-template-columns: 1fr;
  }

  .labs-arena-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .labs-arena-text .labs-section-label,
  .labs-arena-text .labs-section-title { text-align: center; }

  .labs-why-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .labs-nav-links { display: none; }

  .labs-hero { padding: 60px 20px 56px; }

  .labs-hero-title { font-size: 2.25rem; }

  .labs-card { padding: 24px; }

  .labs-card-title { font-size: 1.5rem; }

  .labs-tier-inner { flex-direction: column; gap: 16px; }
  .labs-tier-arrow { transform: rotate(90deg); }
}