/* ============================================
   BatteryMBA — Landing Page Stylesheet
   Modern energy-industry professional aesthetic
   ============================================ */

:root {
  --bg: #0b0f1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2536;
  --surface: #1a2536;
  --border: #1f2d40;
  --text: #e8edf5;
  --text-muted: #8a9ab5;
  --accent: #00d4ff;
  --accent-dim: #0090b0;
  --accent-glow: rgba(0, 212, 255, 0.15);
  --bess-tag: #f59e0b;
  --bess-tag-bg: rgba(245, 158, 11, 0.12);
  --green: #10b981;
  --white: #ffffff;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ───────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); text-decoration: none; }

.btn-nav {
  background: var(--accent) !important;
  color: var(--bg) !important;
  padding: 7px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.875rem !important;
  transition: background 0.2s, transform 0.1s !important;
}

.btn-nav:hover {
  background: var(--accent-dim) !important;
  transform: translateY(-1px);
  text-decoration: none !important;
}

/* ── HERO ──────────────────────────────────── */
.hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(0, 212, 255, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 212, 255, 0.25);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background: #00bce0;
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--bg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, transform 0.1s;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-large { padding: 16px 36px; font-size: 1.1rem; }

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; }

.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── BESS BANNER ───────────────────────────── */
.bess-banner {
  background: var(--bess-tag-bg);
  border-top: 1px solid rgba(245, 158, 11, 0.2);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  padding: 16px 0;
}

.bess-banner-inner {
  display: flex;
  align-items: center;
  gap: 16px;
}

.bess-banner-icon { font-size: 1.6rem; }

.bess-banner-text {
  font-size: 0.95rem;
  color: var(--text);
}

.bess-banner-text strong { color: var(--bess-tag); }

/* ── SECTIONS ──────────────────────────────── */
.section { padding: 80px 0; }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ── WHO FOR ───────────────────────────────── */
.who-for { background: var(--bg); }

.who-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.who-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}

.who-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  background: var(--bg-card-hover);
}

.who-icon { font-size: 2rem; margin-bottom: 16px; }

.who-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.who-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* ── CURRICULUM ────────────────────────────── */
.curriculum { background: #0e1520; }

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.module-card {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: border-color 0.2s;
}

.module-card:hover { border-color: rgba(0, 212, 255, 0.2); }

.module-card.module-bess {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(0, 212, 255, 0.03));
  border-color: rgba(245, 158, 11, 0.2);
}

.module-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--surface);
  border-radius: 6px;
  padding: 4px 8px;
  white-space: nowrap;
  height: fit-content;
  min-width: 32px;
  text-align: center;
}

.bess-tag {
  background: var(--bess-tag-bg) !important;
  color: var(--bess-tag) !important;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.module-body h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.module-body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.55; }

.curriculum-note {
  margin-top: 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 24px;
}

.curriculum-note strong { color: var(--bess-tag); }

/* ── ROI ────────────────────────────────────── */
.roi-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.roi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.roi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  text-align: center;
}

.roi-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
  line-height: 1;
}

.roi-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.roi-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ── BESS DEEP DIVE ────────────────────────── */
.bess-deep { background: #0e1520; }

.bess-deep-header { text-align: center; margin-bottom: 48px; }

.bess-deep-badge {
  display: inline-block;
  background: var(--bess-tag-bg);
  color: var(--bess-tag);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(245, 158, 11, 0.3);
  margin-bottom: 16px;
}

.bess-deep-header .section-sub { margin: 0 auto 0; }

.bess-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.bess-feature {
  background: var(--bg-card);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: 12px;
  padding: 24px;
  border-left: 3px solid var(--bess-tag);
}

.bess-feature-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.bess-feature p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; }

/* ── TRUST / SOCIAL PROOF ──────────────────── */
.trust-section { background: var(--bg); }

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.trust-stat {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.trust-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
  line-height: 1;
}

.trust-label { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

.trust-quote {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 36px;
  text-align: center;
}

.trust-quote blockquote {
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 16px;
}

.trust-quote cite {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: normal;
}

/* ── PRICING ───────────────────────────────── */
.pricing-section {
  background: #0e1520;
}

.pricing-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 2px solid rgba(0, 212, 255, 0.3);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--bess-tag));
}

.pricing-badge {
  display: inline-block;
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(0, 212, 255, 0.25);
  margin-bottom: 20px;
}

.pricing-amount {
  font-size: 4rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}

.pricing-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.pricing-includes {
  list-style: none;
  text-align: left;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-includes li {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
}

.pricing-note {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── CTA ───────────────────────────────────── */
.cta-section { background: var(--bg); }

.cta-box {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(245, 158, 11, 0.04));
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 20px;
  padding: 56px 40px;
}

.cta-badge {
  display: inline-block;
  background: var(--green);
  color: var(--bg);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.cta-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.cta-trust {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── FOOTER ────────────────────────────────── */
.footer {
  background: #070b12;
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-brand { max-width: 360px; }

.footer-brand .logo { display: block; margin-bottom: 12px; }

.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

.footer-links {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ── RESPONSIVE ─────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { gap: 16px; }
  .nav-links a:not(.btn-nav) { display: none; }
  .hero { padding: 72px 0 56px; }
  .hero-stats { gap: 28px; }
  .section { padding: 60px 0; }
  .modules-grid { grid-template-columns: 1fr; }
  .pricing-card, .cta-box { padding: 36px 24px; }
  .pricing-amount { font-size: 3rem; }
  .footer-inner { flex-direction: column; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── COHORT CALLOUT ─────────────────────────── */
.cohort-callout {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(0, 212, 255, 0.06));
  border-top: 1px solid rgba(16, 185, 129, 0.2);
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
  padding: 20px 0;
}

.cohort-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cohort-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--green);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
}

.cohort-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
}

.cohort-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  flex: 1;
}

.cohort-cta {
  background: var(--green);
  color: var(--bg);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 8px 20px;
  border-radius: 8px;
  transition: background 0.2s;
  white-space: nowrap;
}

.cohort-cta:hover {
  background: #0ea572;
  text-decoration: none;
  color: var(--bg);
}

/* ── HOW IT WORKS ───────────────────────────── */
.how-it-works { background: var(--bg); }

.steps-grid {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 200px;
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 20px;
}

.step-arrow {
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 700;
  display: flex;
  align-items: center;
  padding-top: 24px;
  flex-shrink: 0;
}

.step-num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--bg);
  background: var(--accent);
  border-radius: 6px;
  padding: 4px 10px;
  height: fit-content;
  white-space: nowrap;
}

.step-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.step-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── US MARKET ──────────────────────────────── */
.us-market {
  background: #0e1520;
}

.us-market-header { text-align: center; margin-bottom: 48px; }

.us-badge {
  display: inline-block;
  background: rgba(0, 212, 255, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(0, 212, 255, 0.2);
  margin-bottom: 16px;
}

.us-market-header .section-sub { margin: 0 auto 0; }

.us-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.us-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
}

.us-card-icon { font-size: 1.8rem; margin-bottom: 16px; }

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

.us-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; }