/* Silicon Valley Robotics Center — Professional Tech Design System */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
  --color-bg: #08090b;
  --color-bg-deep: #050608;
  --color-bg-elevated: #0e1014;
  --color-bg-card: #111318;
  --color-surface: #161a20;
  --color-surface-hover: #1c2129;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(255, 255, 255, 0.14);
  --color-border-glow: rgba(56, 189, 248, 0.2);
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-accent: #38bdf8;
  --color-accent-dim: rgba(56, 189, 248, 0.1);
  --color-accent-glow: rgba(56, 189, 248, 0.25);
  --color-accent-amber: #fbbf24;
  --color-accent-amber-dim: rgba(251, 191, 36, 0.12);
  --font-display: 'Syne', 'SF Pro Display', sans-serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(56, 189, 248, 0.06);
  --shadow-glow: 0 0 24px rgba(56, 189, 248, 0.08);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  background-image: 
    radial-gradient(ellipse 100% 100% at 50% 0%, rgba(56, 189, 248, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse 80% 60% at 100% 100%, rgba(56, 189, 248, 0.02) 0%, transparent 40%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.875rem 2rem;
  background: rgba(8, 9, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.nav {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-accent);
  text-shadow: 0 0 16px rgba(56, 189, 248, 0.3);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.75rem;
  align-items: center;
}

.nav-links > li {
  position: relative;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a:hover { color: var(--color-text); }

/* Dropdown */
.nav-dropdown-trigger {
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-dropdown-trigger:hover { color: var(--color-text); }

.nav-dropdown-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  margin-left: 0.2rem;
  opacity: 0.7;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: 200;
}

.nav-links > li:hover .nav-dropdown,
.nav-dropdown-trigger:focus + .nav-dropdown,
.nav-dropdown:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-inner {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.5rem 0;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.nav-dropdown a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.nav-dropdown a:hover {
  color: var(--color-accent);
  background: rgba(56, 189, 248, 0.06);
}

.nav-cta {
  display: flex;
  gap: 0.75rem;
}

.global-search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
}

.search-shortcut-hint {
  font-size: 0.68rem;
  color: var(--color-text-dim);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #0f172a;
  box-shadow: 0 2px 12px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover {
  background: #7dd3fc;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.3);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-elevated);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}

.btn-ghost:hover { color: var(--color-accent); }

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 8rem 2rem 5rem;
  overflow: hidden;
}

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

.hero-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(56, 189, 248, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(56, 189, 248, 0.04) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(56, 189, 248, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(251, 191, 36, 0.04) 0%, transparent 50%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(56, 189, 248, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 100% 80% at 50% 40%, black 10%, transparent 65%);
  animation: grid-pulse 8s ease-in-out infinite;
}

@keyframes grid-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.hero-lines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 80px,
    rgba(56, 189, 248, 0.02) 80px,
    rgba(56, 189, 248, 0.02) 81px
  );
  mask-image: radial-gradient(ellipse 100% 80% at 50% 40%, black 5%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  animation: hero-fade-in 1s ease-out;
}

@keyframes hero-fade-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.18);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.hero-location {
  font-size: 0.95rem;
  color: var(--color-text-dim);
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-dim);
  font-size: 0.8rem;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  position: relative;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  animation: scroll-bounce 2s infinite;
  box-shadow: 0 0 8px var(--color-accent);
}

@keyframes scroll-bounce {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.5; transform: translateX(-50%) translateY(8px); }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Search */
.search-section {
  padding-top: 2.5rem;
}

.search-shell {
  max-width: 980px;
  margin: 0 auto;
  background: linear-gradient(160deg, rgba(17, 19, 24, 0.96) 0%, rgba(11, 14, 18, 0.96) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.35rem;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(56, 189, 248, 0.07) inset;
}

.search-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 0.95rem;
  width: 18px;
  height: 18px;
  color: var(--color-text-dim);
  pointer-events: none;
}

#site-search-input {
  width: 100%;
  min-height: 52px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: rgba(8, 9, 11, 0.88);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85rem 5.2rem 0.85rem 2.8rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#site-search-input::placeholder {
  color: var(--color-text-dim);
}

#site-search-input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.17);
}

.search-clear {
  position: absolute;
  right: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: rgba(22, 26, 32, 0.9);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.34rem 0.55rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), color var(--transition), border-color var(--transition);
}

.search-clear.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.search-clear:hover {
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

.search-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.search-tabs {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(8, 9, 11, 0.7);
}

.search-tab {
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  padding: 0.46rem 0.85rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.search-tab:hover {
  color: var(--color-text);
}

.search-tab.is-active {
  background: rgba(56, 189, 248, 0.18);
  color: var(--color-accent);
}

.search-meta {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.search-results {
  margin-top: 1rem;
  min-height: 120px;
  display: grid;
  gap: 0.75rem;
}

.search-empty {
  border: 1px dashed var(--color-border);
  border-radius: 12px;
  padding: 1.1rem;
  color: var(--color-text-dim);
  font-size: 0.92rem;
  background: rgba(8, 9, 11, 0.45);
}

.search-result-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 0.95rem 1rem;
  background: rgba(14, 16, 20, 0.94);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.search-result-card.has-thumb {
  padding-left: 7rem;
}

.search-result-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.search-result-card.is-key-selected {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2), var(--shadow-card-hover);
  transform: translateY(-1px);
}

.search-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.4rem;
}

.search-result-thumb {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  width: 5.5rem;
  height: calc(100% - 1.4rem);
  min-height: 4.4rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
}

.search-result-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.search-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  padding: 0.18rem 0.52rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.search-result-card[data-type="product"] .search-badge {
  color: var(--color-accent);
  border-color: rgba(56, 189, 248, 0.28);
}

.search-result-card[data-type="article"] .search-badge {
  color: var(--color-accent-amber);
  border-color: rgba(251, 191, 36, 0.25);
}

.search-result-title {
  font-family: var(--font-display);
  font-size: 1.03rem;
  line-height: 1.3;
}

.search-result-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

mark.search-highlight {
  background: rgba(56, 189, 248, 0.24);
  color: var(--color-text);
  border-radius: 4px;
  padding: 0.02em 0.15em;
}

/* Global command palette */
.search-palette {
  position: fixed;
  inset: 0;
  z-index: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.search-palette.is-open {
  opacity: 1;
  pointer-events: auto;
}

.search-palette-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 4, 8, 0.64);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.search-palette-panel {
  position: relative;
  width: min(860px, calc(100% - 2rem));
  max-height: 78vh;
  margin: 9vh auto 0;
  border: 1px solid var(--color-border-hover);
  border-radius: 16px;
  background: linear-gradient(170deg, rgba(17, 19, 24, 0.98), rgba(10, 12, 16, 0.98));
  box-shadow: 0 26px 90px rgba(0, 0, 0, 0.58), 0 0 0 1px rgba(56, 189, 248, 0.08) inset;
  overflow: hidden;
}

.search-palette-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem;
  border-bottom: 1px solid var(--color-border);
}

.search-palette-input {
  width: 100%;
  min-height: 48px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: rgba(8, 9, 11, 0.9);
  color: var(--color-text);
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
  font-family: var(--font-body);
}

.search-palette-input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.48);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.16);
}

.search-palette-close {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: rgba(22, 26, 32, 0.9);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  min-width: 56px;
  min-height: 40px;
  cursor: pointer;
}

.search-palette-close:hover {
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

.search-palette-help {
  font-size: 0.78rem;
  color: var(--color-text-dim);
  padding: 0.55rem 0.95rem 0.3rem;
}

.search-palette-results {
  max-height: calc(78vh - 120px);
  overflow-y: auto;
  padding: 0.75rem 0.95rem 1rem;
  display: grid;
  gap: 0.6rem;
}

/* Global core CTA */
.global-core-cta {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 520;
  border-radius: 999px;
  min-height: 48px;
  padding: 0.78rem 1.2rem;
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.3), 0 0 0 1px rgba(56, 189, 248, 0.25) inset;
}

.global-core-cta:hover {
  box-shadow: 0 14px 34px rgba(56, 189, 248, 0.34), 0 0 0 1px rgba(56, 189, 248, 0.35) inset;
}

.global-core-cta.is-hidden-by-mobile-hero {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.mobile-hero-cta {
  position: fixed;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.7rem;
  z-index: 530;
  background: linear-gradient(165deg, rgba(10, 13, 17, 0.97), rgba(14, 20, 28, 0.97));
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  padding: 0.75rem 0.75rem 0.8rem;
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-hero-cta.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-hero-cta-close {
  position: absolute;
  top: 0.25rem;
  right: 0.3rem;
  border: none;
  background: transparent;
  color: var(--color-text-dim);
  font-size: 1.2rem;
  line-height: 1;
  width: 34px;
  height: 34px;
  cursor: pointer;
}

.mobile-hero-cta-text {
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0.15rem 0 0.65rem;
  padding-right: 1.5rem;
}

.mobile-hero-cta-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.mobile-hero-cta-actions .btn {
  min-height: 42px;
  padding: 0.64rem 0.75rem;
  font-size: 0.82rem;
}

/* Sections */
.section {
  padding: 4rem 2rem;
  position: relative;
}

.section + .section { padding-top: 2rem; }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Value Props - Three pillars */
.value-props {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.value-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent), rgba(56, 189, 248, 0.4));
  border-radius: 0 2px 2px 0;
  opacity: 0.8;
}

.value-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.value-card:hover::before {
  opacity: 1;
}

.value-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  padding-left: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.value-card h3::before {
  content: none;
}

.value-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding-left: 0.5rem;
  line-height: 1.5;
}

.value-card .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  font-size: 0.875rem;
  padding-left: 0.5rem;
}

.value-card .link-arrow:hover { color: #7dd3fc; }

.value-props.four-cols {
  grid-template-columns: repeat(4, 1fr);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.product-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.product-card-image {
  aspect-ratio: 4/3;
  background: var(--color-surface);
  display: block;
  overflow: hidden;
  position: relative;
}

.product-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.2) 100%);
  pointer-events: none;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-card:hover .product-card-image img {
  transform: scale(1.03);
}

.product-card-body {
  padding: 1.25rem;
}

.product-card-tag {
  font-size: 0.7rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  opacity: 0.9;
}

.product-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.product-card-price {
  font-weight: 600;
  color: var(--color-accent-amber);
  font-size: 0.95rem;
}

/* Events */
.events-section {
  background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 50%, var(--color-bg-elevated) 100%);
  position: relative;
}

.events-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(56, 189, 248, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.event-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.event-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

a.event-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.location-card-image {
  width: calc(100% + 3rem);
  height: 170px;
  margin: -1.5rem -1.5rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.location-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.event-card:hover .location-card-image img {
  transform: scale(1.04);
}

.content-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.content-image-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.content-image-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.content-image-card span {
  display: block;
  padding: 0.65rem 0.85rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.contact-info-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-bottom: 1rem;
}

.event-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.event-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.news-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.news-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.model-card-image {
  width: calc(100% + 3rem);
  height: 150px;
  margin: -1.5rem -1.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-surface);
}

.model-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.news-card:hover .model-card-image img {
  transform: scale(1.04);
}

.auto-card-image {
  width: calc(100% + 3rem);
  height: 145px;
  margin: -1.5rem -1.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-surface);
}

.auto-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.news-card:hover .auto-card-image img,
.event-card:hover .auto-card-image img {
  transform: scale(1.04);
}

.news-card-date {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-bottom: 0.5rem;
}

.news-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.news-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  position: relative;
}

.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Action Bar — Triple CTA (Get Robot | Request Data | Contact) */
.action-bar {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  position: relative;
}

.action-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(56, 189, 248, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.action-bar h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.action-bar .action-bar-subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 2rem;
}

.action-bar-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.action-bar-buttons .btn {
  min-width: 180px;
}

.action-bar-buttons .btn-primary {
  font-weight: 600;
}

.action-bar-buttons .btn-secondary {
  border-color: var(--color-border);
}

.action-bar-buttons .btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Global internal link hub */
.internal-link-hub {
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

.internal-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  max-width: 980px;
  margin: 0 auto;
}

.internal-link-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
}

.internal-link-chip:hover {
  border-color: var(--color-border-hover);
  color: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card-hover);
}

.auto-inline-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color 0.2s ease;
}

.auto-inline-link:hover {
  color: var(--color-accent-2);
}

/* Footer */
.site-footer {
  padding: 4rem 2rem 2rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-deep);
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li { margin-bottom: 0.5rem; }

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover { color: var(--color-accent); }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--color-text-dim);
  font-size: 0.85rem;
}

/* Page layouts */
.page-hero {
  padding: 8rem 2rem 4rem;
  text-align: center;
  position: relative;
  background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(56, 189, 248, 0.05) 0%, transparent 55%);
  pointer-events: none;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
  line-height: 1.15;
}

.page-hero p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
}

.page-hero .hero-cta-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  align-items: center;
  margin-top: 1.5rem;
}

.page-hero .hero-cta-inline .btn { flex-shrink: 0; }
.page-hero .hero-cta-inline .link-arrow { font-size: 0.95rem; }

/* Location detail page - city hero with photo */
.location-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8rem 2rem 4rem;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--color-border);
}
.location-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 5, 7, 0.3) 40%, rgba(5, 5, 7, 0.9) 100%);
  pointer-events: none;
}
.location-hero .location-hero-content {
  position: relative;
  z-index: 1;
}
.location-hero h1 { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; margin-bottom: 0.5rem; }
.location-hero .location-hero-badge { margin-bottom: 0.75rem; }
.location-hero .location-hero-subtitle { color: var(--color-text-muted); font-size: 1.1rem; }
.location-photos { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; margin: 2rem 0; }
.location-photos img { width: 100%; height: 200px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--color-border); }

/* Data Collection page - detailed */
.data-content {
  max-width: 800px;
  margin: 0 auto;
}

.data-content h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.data-content p, .data-content li {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.data-content ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

/* Platform matrix table */
.platform-matrix-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

.platform-matrix {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.platform-matrix th,
.platform-matrix td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.platform-matrix th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  background: var(--color-bg-elevated);
}

.platform-matrix td {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.platform-matrix tbody tr:last-child td {
  border-bottom: none;
}

.platform-matrix tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.rating {
  color: var(--color-accent-amber);
  letter-spacing: 0.1em;
}

.highlight-box {
  background: rgba(56, 189, 248, 0.06);
  border: 1px solid rgba(56, 189, 248, 0.15);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

a.link-arrow {
  color: var(--color-accent);
  font-weight: 500;
  transition: color var(--transition);
}
a.link-arrow:hover { color: #7dd3fc; }

/* Contact form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info p, .contact-info a {
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  margin-bottom: 1rem;
}

.contact-form textarea { resize: vertical; min-height: 100px; }

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Humanoid Intelligence Hub */
.hub-hero .container {
  position: relative;
  z-index: 1;
}

.hub-section {
  padding-top: 2.75rem;
  padding-bottom: 8rem;
}

.hub-toolbar {
  display: grid;
  grid-template-columns: 1fr minmax(220px, 360px);
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.1rem;
}

.hub-region-filter {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.hub-pill {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.hub-pill.is-active,
.hub-pill:hover {
  color: var(--color-accent);
  border-color: rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.09);
}

.hub-search input {
  width: 100%;
  min-height: 46px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: rgba(8, 9, 11, 0.88);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 0.75rem 0.9rem;
}

.hub-search input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.16);
}

.hub-tabs {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.3rem;
}

.hub-tab {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.62rem 0.95rem;
  cursor: pointer;
}

.hub-tab.is-active,
.hub-tab:hover {
  border-color: rgba(56, 189, 248, 0.35);
  color: var(--color-accent);
  background: rgba(56, 189, 248, 0.08);
}

.hub-view {
  display: none;
}

.hub-view.is-active {
  display: block;
}

.hub-section-header {
  margin-bottom: 1.45rem;
}

.hub-oem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.hub-oem-card,
.hub-network-card,
.hub-component-card,
.hub-risk-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  box-shadow: var(--shadow-card);
}

.hub-oem-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.hub-oem-head h3,
.hub-network-card h3,
.hub-component-card h3,
.hub-risk-card h3 {
  font-family: var(--font-display);
  font-size: 1.06rem;
  line-height: 1.25;
}

.hub-oem-region {
  border-radius: 999px;
  padding: 0.17rem 0.5rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
}

.hub-oem-region-us {
  color: #7dd3fc;
  border-color: rgba(125, 211, 252, 0.5);
}

.hub-oem-region-cn {
  color: #fca5a5;
  border-color: rgba(252, 165, 165, 0.4);
}

.hub-oem-region-other {
  color: #d4d4d8;
  border-color: rgba(212, 212, 216, 0.36);
}

.hub-oem-card p,
.hub-component-card p,
.hub-risk-description {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.8rem;
}

.hub-oem-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  color: var(--color-text-dim);
  font-size: 0.78rem;
  margin-bottom: 0.85rem;
}

.hub-oem-ctas,
.hub-network-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hub-card-cta {
  padding: 0.5rem 0.8rem;
  font-size: 0.78rem;
}

.hub-network-grid {
  display: grid;
  gap: 1rem;
}

.hub-supplier-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0.95rem 0 1rem;
}

.hub-supplier-chip {
  display: flex;
  flex-direction: column;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 10px;
  padding: 0.45rem 0.62rem;
  min-width: 140px;
}

.hub-supplier-chip strong {
  font-size: 0.77rem;
}

.hub-supplier-chip small {
  color: var(--color-text-dim);
  font-size: 0.72rem;
}

.hub-buildout-list {
  display: grid;
  gap: 0.85rem;
}

.hub-buildout-item {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-card);
  padding: 1rem;
}

.hub-year {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-accent);
}

.hub-buildout-content h3 {
  font-family: var(--font-display);
  font-size: 1.03rem;
  margin-bottom: 0.35rem;
}

.hub-buildout-content p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.hub-buildout-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--color-text-dim);
  font-size: 0.77rem;
  margin-top: 0.65rem;
}

.hub-component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.hub-component-card ul {
  margin: 0 0 1rem 1rem;
  color: var(--color-text-muted);
  font-size: 0.87rem;
}

.hub-component-card li {
  margin-bottom: 0.42rem;
}

.hub-component-cta .btn {
  width: 100%;
}

.hub-risk-controls {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.hub-risk-controls select {
  min-width: 260px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  border-radius: 8px;
  padding: 0.58rem 0.7rem;
}

.hub-risk-table {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.hub-risk-row {
  display: grid;
  grid-template-columns: 70px 75px 1fr;
  gap: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  background: rgba(8, 9, 11, 0.4);
}

.hub-risk-region {
  color: var(--color-text-dim);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hub-risk-level {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hub-risk-level-high {
  color: #fda4af;
}

.hub-risk-level-medium {
  color: #fcd34d;
}

.hub-risk-level-low {
  color: #86efac;
}

.hub-risk-detail {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.hub-attribution {
  margin-top: 1.2rem;
  color: var(--color-text-dim);
  font-size: 0.8rem;
}

.hub-attribution a {
  color: var(--color-accent);
}

.hub-kpi-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  background: rgba(5, 6, 8, 0.9);
  border-top: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.hub-kpi {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.68rem 0.45rem 0.75rem;
}

.hub-kpi span {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 1rem;
}

.hub-kpi small {
  color: var(--color-text-dim);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  
  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 57px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 2rem;
    gap: 0;
  }
  .nav.open .nav-links > li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
  }
  .nav.open .nav-links > li:last-child { border-bottom: none; }
  
  /* Mobile: dropdowns hidden by default, expand on tap */
  .nav.open .nav-dropdown {
    position: static;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0;
    margin: 0;
    transition: max-height 0.25s ease;
  }
  .nav.open .nav-links > li.dropdown-open .nav-dropdown {
    max-height: 300px;
    padding: 0.5rem 0 0 1rem;
    margin-top: 0.5rem;
    border-left: 2px solid var(--color-border);
  }
  .nav.open .nav-dropdown-inner {
    box-shadow: none;
    padding: 0;
    background: transparent;
    border: none;
  }
  .nav.open .nav-dropdown a {
    padding: 0.4rem 0;
    font-size: 0.85rem;
  }
  
  .hero { padding: 6rem 1.5rem 4rem; }
  .section { padding: 4rem 1.5rem; }
  .search-section { padding-top: 2rem; }
  .search-shell { padding: 1rem; }
  .search-controls {
    align-items: flex-start;
    flex-direction: column;
  }
  .search-tabs {
    width: 100%;
    justify-content: space-between;
  }
  .search-tab {
    flex: 1;
  }
  #site-search-input {
    padding-right: 4.6rem;
  }
  .search-shortcut-hint {
    display: none;
  }
  .search-result-card.has-thumb {
    padding-left: 1rem;
    padding-top: 6.1rem;
  }
  .search-result-thumb {
    top: 0.8rem;
    left: 0.8rem;
    width: calc(100% - 1.6rem);
    height: 4.6rem;
  }
  .search-palette-panel {
    width: calc(100% - 1rem);
    margin-top: 5vh;
    max-height: 86vh;
  }
  .search-palette-results {
    max-height: calc(86vh - 120px);
  }
  .global-core-cta {
    right: 0.75rem;
    bottom: 0.75rem;
    min-height: 44px;
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
  }
  .mobile-hero-cta {
    display: block;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .nav-links { flex-wrap: wrap; gap: 1rem; }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .value-props { grid-template-columns: 1fr; }
  .value-props.four-cols { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .events-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .action-bar-buttons { flex-direction: column; }
  .action-bar-buttons .btn { min-width: 100%; max-width: 280px; }
  .product-detail-grid { grid-template-columns: 1fr !important; }
  .hub-toolbar {
    grid-template-columns: 1fr;
  }
  .hub-buildout-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .hub-risk-row {
    grid-template-columns: 1fr;
  }
  .hub-risk-controls {
    flex-direction: column;
    align-items: flex-start;
  }
  .hub-risk-controls select {
    min-width: 100%;
  }
  .hub-kpi-bar {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }
}

@media (min-width: 769px) {
  .mobile-hero-cta {
    display: none !important;
  }
}