/* ============================================================
   HOME PAGE STYLES
   ============================================================ */

/* ── HERO ── */
.hero {
  position: relative;
  min-height: clamp(580px, 80vh, 900px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: var(--space-20);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, color-mix(in srgb, var(--color-primary) 8%, transparent) 0%, transparent 60%),
    linear-gradient(160deg, var(--color-bg) 0%, var(--color-surface-offset) 100%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero-heading {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-accent { color: var(--color-primary); }

.hero-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 48ch;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ── HERO VISUAL ── */
.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hero-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hcard-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.hcard-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}
.hcard-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.hcard-badge {
  margin-left: auto;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.hcard-badge--green  { background: #d1fae5; color: #065f46; }
.hcard-badge--blue   { background: #dbeafe; color: #1e40af; }
.hcard-badge--amber  { background: #fef3c7; color: #92400e; }

[data-theme='dark'] .hcard-badge--green  { background: #064e3b; color: #6ee7b7; }
[data-theme='dark'] .hcard-badge--blue   { background: #1e3a5f; color: #93c5fd; }
[data-theme='dark'] .hcard-badge--amber  { background: #3d2a0a; color: #fcd34d; }

/* ── EXPERTISE GRID ── */
.expertise-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

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

.expertise-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive);
}
.expertise-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.exp-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
}

.exp-title {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.exp-body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

/* ── CASE STUDIES ── */
.cs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.cs-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive), border-color var(--transition-interactive);
}
.cs-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.cs-card-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.cs-card-visual--1 {
  background: linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 12%, var(--color-bg)), color-mix(in srgb, var(--color-primary) 6%, var(--color-bg)));
  border-bottom: 1px solid var(--color-border);
}
.cs-card-visual--2 {
  background: linear-gradient(135deg, color-mix(in srgb, var(--color-accent) 10%, var(--color-bg)), color-mix(in srgb, var(--color-accent) 5%, var(--color-bg)));
  border-bottom: 1px solid var(--color-border);
}

.cs-diagram {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.cs-node {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  white-space: nowrap;
}
.cs-node--src { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-text-muted); }
.cs-node--dst { background: var(--color-primary); color: #fff; }
.cs-arrow { color: var(--color-primary); }

.cs-card-body { padding: var(--space-8); flex: 1; }

.cs-eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.cs-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.cs-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.cs-tags { margin-bottom: var(--space-5); }

.cs-read-more {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}
.cs-card:hover .cs-read-more { text-decoration: underline; }

/* ── ABOUT STRIP ── */
.about-strip {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.about-strip-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-strip-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

/* Timeline */
.about-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-border);
}
.timeline-item {
  position: relative;
  padding: var(--space-5) 0 var(--space-5) var(--space-6);
}
.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-6) - 5px);
  top: calc(var(--space-5) + 4px);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-bg);
}
.timeline-role {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.timeline-org {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}
.timeline-year {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-1);
}

/* ── CTA SECTION ── */
.cta-section {
  background: linear-gradient(160deg, var(--color-surface-offset) 0%, var(--color-bg) 100%);
  border-top: 1px solid var(--color-divider);
}
.cta-heading {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.cta-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-inline: auto;
  line-height: 1.7;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .hero-visual { justify-content: flex-start; }
  .hero-card-stack { max-width: 100%; }

  .expertise-grid { grid-template-columns: 1fr 1fr; }
  .cs-grid { grid-template-columns: 1fr; }
  .about-strip-inner { grid-template-columns: 1fr; gap: var(--space-10); }
}

@media (max-width: 600px) {
  .expertise-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: var(--space-4); }
}