/* ============================================
   YUGM AI - Homepage
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 182, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 182, 255, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.9), transparent 88%);
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.5;
}

.hero-gradient-orb.orb-1 {
  top: -160px;
  right: -80px;
  width: 540px;
  height: 540px;
  background: radial-gradient(circle, rgba(32, 131, 255, 0.28), transparent 68%);
}

.hero-gradient-orb.orb-2 {
  bottom: -140px;
  left: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.18), transparent 70%);
}

.hero-gradient-orb.orb-3 {
  top: 42%;
  left: 46%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(31, 181, 110, 0.12), transparent 72%);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: var(--space-10);
  align-items: center;
}

.hero-content {
  max-width: 720px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(127, 182, 255, 0.2);
  background: rgba(32, 131, 255, 0.1);
  color: var(--color-accent-soft);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-label-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-success);
  box-shadow: 0 0 0 8px rgba(31, 181, 110, 0.12);
}

.hero-title {
  max-width: 11ch;
  margin-bottom: var(--space-5);
  color: var(--color-text-white);
  font-size: clamp(3rem, 7vw, 5.2rem);
  line-height: 0.98;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #ffffff 0%, #7fb6ff 38%, #2083ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  max-width: 58ch;
  margin-bottom: var(--space-8);
  color: var(--color-text-white-secondary);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

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

.hero-proof-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(178, 191, 212, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.hero-proof-item::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.hero-stat {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(178, 191, 212, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.hero-stat-number {
  margin-bottom: var(--space-1);
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: var(--font-extrabold);
}

.hero-stat-label {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.hero-panel-card {
  padding: var(--space-8);
}

.hero-panel-label {
  margin-bottom: var(--space-3);
  color: var(--color-accent-soft);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-panel-heading {
  margin-bottom: var(--space-6);
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.4vw, 2.15rem);
  line-height: 1.15;
}

.hero-feature-list {
  display: grid;
  gap: var(--space-4);
}

.hero-feature-item {
  display: flex;
  gap: var(--space-3);
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.hero-feature-icon {
  width: 12px;
  height: 12px;
  margin-top: 0.45rem;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-soft));
  box-shadow: 0 0 0 6px rgba(32, 131, 255, 0.12);
}

.hero-panel-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(178, 191, 212, 0.12);
}

.hero-panel-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.hero-panel-stat-value {
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-extrabold);
}

.hero-panel-stat-label {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.projects-section,
.process-section,
.philosophy-section {
  background: rgba(2, 6, 13, 0.42);
}

.projects-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-6);
  align-items: stretch;
}

.projects-empty-card,
.project-signal-card,
.service-card,
.process-step,
.philosophy-point,
.faq-item {
  border: 1px solid var(--color-border-dark);
  background: linear-gradient(180deg, rgba(16, 27, 44, 0.86), rgba(8, 15, 26, 0.94));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.projects-empty-card {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.projects-empty-badge {
  display: inline-flex;
  width: fit-content;
  margin-bottom: var(--space-4);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-full);
  background: rgba(245, 158, 11, 0.14);
  color: #ffca61;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.projects-empty-card h3 {
  margin-bottom: var(--space-3);
  color: var(--color-text-white);
  font-size: clamp(1.7rem, 2.5vw, 2.3rem);
}

.projects-empty-card p {
  max-width: 52ch;
  margin-bottom: var(--space-6);
  color: var(--color-text-white-secondary);
}

.projects-empty-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.project-signal-grid {
  display: grid;
  gap: var(--space-4);
}

.project-signal-card {
  padding: var(--space-6);
}

.project-signal-label {
  display: inline-block;
  margin-bottom: var(--space-3);
  color: var(--color-accent-soft);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-signal-card h3 {
  margin-bottom: var(--space-3);
  color: var(--color-text-white);
  font-size: var(--text-lg);
}

.project-signal-card p {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}

.service-card {
  padding: var(--space-8);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-lg);
  background: rgba(32, 131, 255, 0.12);
  border: 1px solid rgba(127, 182, 255, 0.18);
}

.service-icon svg {
  color: var(--color-accent-soft);
}

.service-card-title {
  margin-bottom: var(--space-3);
  color: var(--color-text-white);
  font-size: var(--text-lg);
}

.service-card-desc {
  margin-bottom: var(--space-5);
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.service-card-list {
  display: grid;
  gap: var(--space-2);
}

.service-card-list li {
  position: relative;
  padding-left: 1rem;
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.service-card-list li::before {
  content: '';
  position: absolute;
  top: 0.55rem;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}

.process-step {
  position: relative;
  padding: var(--space-7);
}

.process-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-full);
  background: rgba(32, 131, 255, 0.12);
  border: 1px solid rgba(127, 182, 255, 0.2);
  color: var(--color-accent-soft);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-extrabold);
}

.process-step-title {
  margin-bottom: var(--space-3);
  color: var(--color-text-white);
  font-size: var(--text-lg);
}

.process-step-desc {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.stats-section {
  padding: var(--space-16) 0;
  background:
    linear-gradient(180deg, rgba(7, 16, 27, 0.94), rgba(4, 9, 16, 0.98)),
    radial-gradient(circle at top right, rgba(32, 131, 255, 0.1), transparent 35%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.stat-item {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(178, 191, 212, 0.1);
  background: rgba(255, 255, 255, 0.03);
  text-align: center;
}

.stat-number {
  margin-bottom: var(--space-2);
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  font-weight: var(--font-extrabold);
  line-height: 1;
}

.stat-suffix {
  color: var(--color-accent-soft);
}

.stat-label {
  color: var(--color-text-white-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.philosophy-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-6);
  align-items: start;
}

.philosophy-quote {
  max-width: 34ch;
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.3vw, 2.15rem);
  line-height: 1.45;
}

.philosophy-points {
  display: grid;
  gap: var(--space-4);
}

.philosophy-point {
  padding: var(--space-6);
}

.philosophy-point h3 {
  margin-bottom: var(--space-2);
  color: var(--color-text-white);
  font-size: var(--text-lg);
}

.philosophy-point p {
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.faq-section {
  background: rgba(2, 6, 13, 0.22);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.faq-item {
  padding: var(--space-6);
}

.faq-item summary {
  cursor: pointer;
  color: var(--color-text-white);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  float: right;
  color: var(--color-accent-soft);
  font-size: 1.4rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: '-';
}

.faq-item p {
  margin-top: var(--space-4);
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.faq-item a {
  color: var(--color-accent-soft);
}

.cta-section {
  overflow: hidden;
}

.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: var(--space-6);
  align-items: center;
}

.cta-title {
  margin-bottom: var(--space-4);
  color: var(--color-text-white);
  font-size: clamp(2rem, 3vw, 3rem);
}

.cta-description {
  max-width: 52ch;
  margin-bottom: var(--space-5);
  color: var(--color-text-white-secondary);
  font-size: var(--text-md);
}

.cta-points {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.cta-points li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

.cta-points li::before {
  content: '';
  position: absolute;
  top: 0.55rem;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.cta-card {
  padding: var(--space-8);
}

.cta-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-xl);
  background: rgba(32, 131, 255, 0.12);
  border: 1px solid rgba(127, 182, 255, 0.2);
  color: var(--color-accent-soft);
}

.cta-card-title {
  margin-bottom: var(--space-3);
  color: var(--color-text-white);
  font-size: var(--text-xl);
}

.cta-card-desc {
  margin-bottom: var(--space-5);
  color: var(--color-text-white-secondary);
  font-size: var(--text-sm);
}

@media (max-width: 1024px) {
  .hero-layout,
  .projects-layout,
  .philosophy-shell,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-12);
  }

  .hero-title {
    max-width: 100%;
  }

  .hero-stats,
  .stats-grid,
  .process-timeline,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .projects-empty-actions,
  .cta-buttons {
    flex-direction: column;
  }

  .hero-actions .btn,
  .projects-empty-actions .btn,
  .cta-buttons .btn {
    width: 100%;
  }

  .hero-panel-card,
  .projects-empty-card,
  .service-card,
  .process-step,
  .cta-card {
    padding: var(--space-6);
  }
}