/* ============================================================
   SITE NAV
   ============================================================ */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 500;
  display: flex;
  align-items: center;
  padding-inline: var(--space-8);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-nav--scrolled {
  background: rgba(250,249,252,0.92);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.site-nav__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-nav__logo {
  font-family: var(--font-headline);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  flex-shrink: 0;
}
.site-nav__logo span { color: var(--color-accent); }

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex: 1;
}

.site-nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.site-nav__links a:hover { color: var(--color-primary); }

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .site-nav { padding-inline: var(--space-4); }
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-16));
  padding-bottom: var(--space-24);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(117,89,184,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(90,131,217,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-8);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(117,89,184,0.1);
  color: var(--color-primary);
  padding: 0.35rem var(--space-4);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

.hero__title .highlight {
  color: var(--color-primary);
  position: relative;
}

.hero__body {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hero__link:hover { color: var(--color-primary); }

/* Hero mockup card */
.hero__mockup {
  position: relative;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.hero__mockup.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.mockup-player {
  background: var(--color-text-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.mockup-player__screen {
  width: 100%;
  padding-top: 56.25%;
  background: linear-gradient(135deg, #1e1333 0%, #2a1d4a 50%, #1a1626 100%);
  position: relative;
}

.mockup-player__screen-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
}

.mockup-play-btn {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.8rem;
  backdrop-filter: blur(8px);
}

.mockup-video-label {
  color: rgba(255,255,255,0.6);
  font-size: var(--text-xs);
  font-family: var(--font-body);
}

.mockup-player__controls {
  padding: var(--space-3) var(--space-4);
  background: #1A1626;
}

.mockup-timeline {
  height: 4px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-pill);
  position: relative;
  margin-bottom: var(--space-2);
}

.mockup-timeline__progress {
  height: 100%;
  width: 38%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
}

.mockup-timeline__pins {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
}

.mockup-pin {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-primary-light);
  border: 2px solid #1A1626;
  transition: transform var(--transition-elastic), width var(--transition-elastic), height var(--transition-elastic);
}

.mockup-pin--active { background: var(--color-accent); }

.mockup-pin:hover {
  transform: translateY(-50%) scale(1.5);
  z-index: 2;
}

.mockup-time {
  color: rgba(255,255,255,0.4);
  font-size: 10px;
  font-family: var(--font-mono);
}

/* Quiz overlay on mockup */
.mockup-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(26,22,38,0.88);
  backdrop-filter: blur(12px);
  padding: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.mockup-question {
  font-family: var(--font-headline);
  color: #fff;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

.mockup-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mockup-option {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  color: rgba(255,255,255,0.8);
  font-size: var(--text-xs);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.mockup-option:hover {
  background: rgba(117,89,184,0.3);
  border-color: var(--color-primary);
}

.mockup-option--correct {
  background: rgba(61,170,110,0.2);
  border-color: var(--color-success);
  color: #fff;
}

@media (max-width: 768px) {
  .hero__grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero { padding-bottom: var(--space-16); }
  .hero__mockup { max-width: 400px; margin-inline: auto; }
}


/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features { padding-block: var(--space-24); }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}

.features__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.features__header h2 { margin-bottom: var(--space-4); }
.features__header p { max-width: 560px; margin-inline: auto; font-size: var(--text-lg); }

.feature-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(117,89,184,0.3);
}

.feature-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: rgba(117,89,184,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.4rem;
  margin-bottom: var(--space-4);
}

.feature-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.feature-card__body { font-size: var(--text-sm); }


/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding-block: var(--space-24);
  background: var(--color-surface);
}

.steps { display: flex; flex-direction: column; gap: var(--space-16); }

.step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.step--reverse { direction: rtl; }
.step--reverse > * { direction: ltr; }

.step__number {
  font-family: var(--font-headline);
  font-size: 7rem;
  font-weight: 700;
  color: rgba(117,89,184,0.08);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.step__title { font-size: var(--text-3xl); margin-bottom: var(--space-4); }
.step__body  { font-size: var(--text-base); }

.step__visual {
  background: var(--color-surface-alt);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  font-size: 4rem;
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .step { grid-template-columns: 1fr; }
  .step--reverse { direction: ltr; }
  .step__number { font-size: 5rem; }
}


/* ============================================================
   SOCIAL PROOF
   ============================================================ */
.social-proof { padding-block: var(--space-24); }

.stats-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
  padding: var(--space-8);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.stat__value {
  font-family: var(--font-headline);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.testimonial__quote {
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial__avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 700;
}

.testimonial__name { font-size: var(--text-sm); font-weight: 600; }
.testimonial__role { font-size: var(--text-xs); color: var(--color-text-muted); }

@media (max-width: 768px) {
  .testimonials { grid-template-columns: 1fr; }
  .stats-bar { gap: var(--space-8); }
}


/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  padding-block: var(--space-24);
  background: var(--color-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  top: -50%; left: -20%;
  width: 60%; height: 200%;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
  pointer-events: none;
}

.cta-band h2 { color: #fff; margin-bottom: var(--space-4); }
.cta-band p  { color: rgba(255,255,255,0.75); margin-bottom: var(--space-8); font-size: var(--text-lg); }

.btn--white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}
.btn--white:hover {
  background: rgba(255,255,255,0.9);
  color: var(--color-primary-dark);
}


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text-primary);
  color: rgba(255,255,255,0.6);
  padding-block: var(--space-12);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand__logo {
  font-family: var(--font-headline);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-3);
}
.footer-brand__logo span { color: var(--color-primary-light); }

.footer-brand__tagline { font-size: var(--text-sm); }

.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-4);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-2);
}
.footer-col a:hover { color: #fff; }

.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
}

@media (max-width: 768px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .site-footer__bottom { flex-direction: column; gap: var(--space-3); text-align: center; }
}