/* ─── Reset ──────────────────────────────────────────────── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Base ───────────────────────────────────────────────── */
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #0f172a;
  color: #cbd5e1;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ─── Hero Header ────────────────────────────────────────── */
.hero-header {
  position: relative;
  width: 100vw;
  left: 50%;
  margin-left: -50vw;
  margin-bottom: 4rem;
}

/* Image tag — retains natural aspect ratio, fills full width */
.hero-bg {
  display: block;
  width: 100%;
  height: auto;
}

/* Dark gradient overlay on top of the image */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.35) 0%,
    rgba(15, 23, 42, 0.65) 60%,
    rgba(15, 23, 42, 0.95) 100%
  );
  display: flex;
  align-items: flex-end;
}

.hero-content {
  padding: 3rem 2rem;
  max-width: 56rem;
  margin: 0 auto;
  width: 100%;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #94a3b8;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 800;
  color: #f8fafc;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 1.5rem;
  max-width: 32rem;
}

.hero-scroll-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #64748b;
  text-decoration: none;
  transition: color 0.15s;
}

.hero-scroll-link:hover {
  color: #94a3b8;
}

/* ─── Main Content ───────────────────────────────────────── */
main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

/* ─── Section Layout ─────────────────────────────────────── */
.content-section {
  margin-bottom: 4rem;
}

.section-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #6366f1;
  margin-bottom: 0.375rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

/* ─── Video ──────────────────────────────────────────────── */
.video-card {
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid #1e293b;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  display: block;
}

/* ─── Pillars ────────────────────────────────────────────── */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.pillar-card {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 0.75rem;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}

.pillar-card:hover {
  border-color: #6366f1;
}

.pillar-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.pillar-number {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #6366f1;
  background-color: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 0.25rem;
  padding: 0.2rem 0.45rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.pillar-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #f1f5f9;
  line-height: 1.3;
}

ol {
  list-style: decimal;
  padding-left: 1.25rem;
  color: #94a3b8;
  font-size: 0.9rem;
}

ol > li {
  margin-bottom: 0.6rem;
  color: #cbd5e1;
  font-weight: 500;
}

ul {
  list-style: disc;
  padding-left: 1.1rem;
  margin-top: 0.3rem;
  color: #64748b;
}

ul > li {
  margin-bottom: 0.2rem;
  font-weight: 400;
  font-size: 0.85rem;
}

/* ─── Tableau ────────────────────────────────────────────── */
.tableau-card {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.tableau-inner {
  width: 100%;
}

/* ─── Separator ──────────────────────────────────────────── */
hr {
  border: none;
  border-top: 1px solid #1e293b;
  margin: 0 0 2.5rem;
}

/* ─── Bottom Navigation ──────────────────────────────────── */
.bottom-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
}

.nav-btn-secondary {
  border: 1px solid #334155;
  background-color: transparent;
  color: #94a3b8;
}

.nav-btn-secondary:hover {
  background-color: #1e293b;
  color: #f1f5f9;
  border-color: #475569;
}

.nav-btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border: 1px solid transparent;
  color: #ffffff;
}

.nav-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  border-top: 1px solid #1e293b;
  padding: 2rem 0 0;
  text-align: center;
}

.footer-quote {
  font-size: 1rem;
  font-style: italic;
  color: #475569;
  max-width: 28rem;
  margin: 0 auto;
  line-height: 1.7;
}