/* ===== GLOBAL COMPONENTS ===== */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container-narrow {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive),
              border-color var(--transition-interactive);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
  background: var(--color-primary-active);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-text-faint);
  transform: translateY(-1px);
}
.btn-ghost:active {
  transform: translateY(0);
  background: var(--color-surface-2);
}

/* ===== BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo-mark { flex-shrink: 0; }
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: color var(--transition-interactive), background var(--transition-interactive);
  cursor: pointer;
}
.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface);
}
.nav-link--active {
  color: var(--color-text);
  font-weight: 600;
}

/* Nav Dropdown */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2);
  min-width: 240px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.nav-dropdown-menu.open {
  display: block;
  opacity: 1;
}
.nav-dropdown-menu a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.nav-dropdown-menu a:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

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

.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 clamp(var(--space-12), 8vw, var(--space-24));
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-default);
  text-align: center;
}
.hero-badge {
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 64ch;
  margin-inline: auto;
  line-height: 1.6;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.4;
  background:
    radial-gradient(circle at 20% 50%, oklch(from var(--color-primary) l c h / 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 30%, oklch(from var(--color-secondary) l c h / 0.04) 0%, transparent 40%);
  pointer-events: none;
}

/* ===== SECTIONS ===== */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}
.section-alt {
  background: var(--color-surface);
}
.section-dark {
  background: #0F172A;
  color: #F8FAFC;
}
[data-theme="dark"] .section-dark {
  background: #111827;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section-label--light {
  color: #38BDF8;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-title--light {
  color: #F8FAFC;
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-inline: auto;
}
.section-subtitle--light {
  color: #94A3B8;
}

/* ===== INDUSTRY GRID ===== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.industry-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  position: relative;
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive),
              border-color var(--transition-interactive);
  cursor: pointer;
}
.industry-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.industry-card:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

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

.industry-card-title {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.industry-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}

.industry-card-arrow {
  font-size: var(--text-base);
  color: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-interactive), transform var(--transition-interactive);
  align-self: flex-end;
}
.industry-card:hover .industry-card-arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* ===== PROSE ===== */
.prose {
  max-width: 68ch;
  margin-inline: auto;
}
.prose p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}
.prose p:first-child {
  color: var(--color-text);
  font-size: var(--text-lg);
  line-height: 1.6;
}

/* ===== SOLUTIONS GRID ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.solution-card {
  padding: var(--space-8);
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
}

.solution-card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.solution-card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.solution-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== STATS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.stat-card {
  padding: var(--space-8);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: #38BDF8;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #F8FAFC;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-desc {
  font-size: var(--text-sm);
  color: #94A3B8;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-divider);
}
.faq-item:first-child {
  border-top: 1px solid var(--color-divider);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-interactive);
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::marker { display: none; content: ''; }
.faq-question:hover {
  color: var(--color-primary);
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--color-text-faint);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  padding-bottom: var(--space-6);
}
.faq-answer p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CTA SECTION ===== */
.section-cta {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}
.cta-content {
  max-width: 560px;
  margin-inline: auto;
}

/* ===== FOOTER ===== */
.site-footer {
  background: #0F172A;
  color: #F8FAFC;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: #F8FAFC;
  margin-bottom: var(--space-4);
}

.footer-about-text {
  font-size: var(--text-sm);
  color: #94A3B8;
  line-height: 1.6;
  max-width: 36ch;
  margin-bottom: var(--space-4);
}

.footer-updated {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #F8FAFC;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-links a {
  font-size: var(--text-sm);
  color: #94A3B8;
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-links a:hover {
  color: #F8FAFC;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: var(--text-xs);
  color: #71717A;
}

.footer-attribution {
  color: #71717A;
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-attribution:hover {
  color: #F8FAFC;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ===== MOBILE RESPONSIVE ===== */

/* Tablet */
@media (max-width: 1024px) {
  .industry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

/* Mobile Nav */
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 150;
    padding: var(--space-20) var(--space-6) var(--space-6);
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }
  .nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }
  .nav-link {
    padding: var(--space-4) var(--space-2);
    font-size: var(--text-lg);
    width: 100%;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-divider);
  }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 var(--space-4);
    min-width: auto;
    background: transparent;
  }
  .nav-dropdown-menu a {
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-2);
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header-actions .btn {
    display: none;
  }

  .hero-title {
    font-size: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
  }
  .hero-subtitle {
    font-size: var(--text-base);
  }

  .industry-grid {
    grid-template-columns: 1fr;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  /* ===== GLOBAL MOBILE CENTERING ===== */
  /* Covers homepage, all vertical pages, and explore page */

  /* Section headers & labels */
  .section-header,
  .section-label,
  .section-title,
  .section-subtitle {
    text-align: center !important;
  }

  .section-label {
    display: block;
  }

  /* Homepage hero */
  .hero-inner {
    text-align: center;
  }

  /* Vertical page heroes */
  .vertical-hero-inner {
    text-align: center !important;
  }

  .vertical-hero-inner h1,
  .vertical-hero-inner .hero-intro {
    text-align: center !important;
  }

  /* All hero action button groups — center on mobile */
  .hero-actions,
  [class*="hero"] .hero-actions {
    justify-content: center !important;
  }

  /* Vertical page content section headers */
  .content-section .section-label,
  .content-section h2 {
    text-align: center !important;
  }

  /* CTA sections */
  .section-cta,
  .cta-content {
    text-align: center !important;
  }

  .cta-content .btn,
  .section-cta .btn {
    margin-inline: auto;
  }
}

/* Large desktop */
@media (min-width: 1440px) {
  .industry-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}