:root {
  /* Base Theme Palette (Default Dark: Futuristic Neon Glass) */
  --bg-base: #07090e;
  --bg-surface: rgba(13, 17, 27, 0.85);
  --bg-surface-hover: rgba(22, 30, 48, 0.92);
  --bg-card: rgba(17, 24, 39, 0.70);
  --bg-card-solid: #0d121d;
  --border-glass: rgba(255, 255, 255, 0.10);
  --border-glass-glow: rgba(0, 240, 255, 0.35);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Brand & Pillar Neon Accents */
  --brand-navy: #ffffff; /* Adaptive White in Dark Mode */
  --brand-cyan: #00f0ff; /* Electric Glowing Cyan */
  --neon-blue: #0066ff;
  --neon-cyan: #00f0ff;
  --neon-emerald: #10b981;
  --neon-amber: #f59e0b;
  --neon-purple: #8b5cf6;

  /* Glow & Shadow Effects */
  --glass-blur: blur(16px);
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.4);
  --glow-emerald: 0 0 25px rgba(16, 185, 129, 0.4);
  --glow-amber: 0 0 25px rgba(245, 158, 11, 0.4);
  --glow-blue: 0 0 25px rgba(0, 102, 255, 0.45);
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --bg-base: #f4f6fb;
  --bg-surface: rgba(255, 255, 255, 0.90);
  --bg-surface-hover: rgba(255, 255, 255, 0.98);
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-solid: #ffffff;
  --border-glass: rgba(0, 0, 0, 0.08);
  --border-glass-glow: rgba(0, 132, 197, 0.35);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  /* Brand colors in Light Mode */
  --brand-navy: #002d62;
  --brand-cyan: #0084C5;
  --neon-cyan: #0084C5;

  --glow-cyan: 0 0 20px rgba(0, 132, 197, 0.25);
  --glow-emerald: 0 0 20px rgba(16, 185, 129, 0.25);
  --glow-amber: 0 0 20px rgba(217, 119, 6, 0.25);
  --glow-blue: 0 0 20px rgba(0, 102, 255, 0.25);
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.2s ease, box-shadow 0.25s ease;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  background-image:
    radial-gradient(circle at 15% 15%, rgba(0, 102, 255, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(0, 240, 255, 0.10) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(16, 185, 129, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.cyber-grid {
  position: fixed;
  inset: 0;
  background-size: 50px 50px;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] .cyber-grid {
  background-image:
    linear-gradient(to right, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

/* ==========================================================================
   NAVBAR (Glassmorphic Header & Adaptive Logo)
   ========================================================================== */
.navbar-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-glass);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  background: transparent !important;
  padding: 0 !important;
  border: none !important;
  box-shadow: none !important;
}

.brand-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
  background: transparent !important;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--neon-cyan);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  border-radius: 2px;
}

/* Right Action Bar Controls */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid var(--border-glass);
  transition: all 0.25s ease;
  min-width: 36px;
}

.lang-toggle-btn.btn-id {
  background: #dc2626;
  color: #ffffff;
  border-color: #ef4444;
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.45);
}

.lang-toggle-btn.btn-en {
  background: #0066ff;
  color: #ffffff;
  border-color: #3b82f6;
  box-shadow: 0 0 12px rgba(0, 102, 255, 0.45);
}

.lang-toggle-btn:hover {
  transform: scale(1.06);
}

.theme-toggle-btn {
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #000000;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
  transition: all 0.25s ease;
  min-width: 36px;
}

.mobile-nav-controls {
  display: none !important;
}

.theme-toggle-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 0 16px rgba(255, 255, 255, 0.6);
}

[data-theme="light"] .theme-toggle-btn {
  background: #000000;
  color: #ffffff;
  border: 1px solid #1e293b;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

[data-theme="light"] .theme-toggle-btn:hover {
  background: #090d16;
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.btn-neon {
  background: linear-gradient(135deg, var(--neon-blue), #00b4d8);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--glow-blue);
  min-height: 44px;
}

.btn-neon:hover {
  box-shadow: 0 0 30px rgba(0, 102, 255, 0.7);
  transform: translateY(-1px);
}

.btn-secondary-glass {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 11px 22px;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.btn-secondary-glass:hover {
  border-color: var(--neon-cyan);
  background: var(--bg-surface-hover);
  box-shadow: var(--glow-cyan);
}

/* Mobile Hamburger */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.mobile-menu-btn:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

/* Mobile Navigation Panel */
.mobile-nav-panel {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(7, 9, 14, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.mobile-nav-panel.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-sheet {
  background: var(--bg-surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-glass-glow);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), var(--glow-cyan);
  max-height: calc(100vh - 76px);
  overflow-y: auto;
  transform: translateY(-12px);
  transition: transform 0.25s ease;
  padding: 12px 20px 24px;
}

.mobile-nav-panel.active .mobile-nav-sheet {
  transform: translateY(0);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 16px 4px;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  min-height: 48px;
}

.mobile-nav-link.active,
.mobile-nav-link:hover {
  color: var(--neon-cyan);
}

.mobile-nav-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
}

@media (max-width: 992px) {
  .nav-menu { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 8vw, 70px) 0 clamp(30px, 6vw, 50px);
  text-align: center;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

[data-theme="light"] .hero-canvas {
  opacity: 0.65;
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero-pillar-pills {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.pillar-pill {
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1.8vw, 0.78rem);
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pillar-pill:hover {
  transform: translateY(-2px);
}

.pillar-pill.p1 {
  border-color: rgba(0, 240, 255, 0.35);
  color: var(--neon-cyan);
}
.pillar-pill.p1:hover {
  box-shadow: var(--glow-cyan);
}

.pillar-pill.p2 {
  border-color: rgba(16, 185, 129, 0.35);
  color: var(--neon-emerald);
}
.pillar-pill.p2:hover {
  box-shadow: var(--glow-emerald);
}

.pillar-pill.p3 {
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--neon-amber);
}
.pillar-pill.p3:hover {
  box-shadow: var(--glow-amber);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 30px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-glass-glow);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1.8vw, 0.8rem);
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--glow-cyan);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--neon-cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(1.8rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title-accent {
  background: linear-gradient(90deg, #00f0ff, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

[data-theme="light"] .hero-title-accent {
  background: linear-gradient(90deg, #0284c7, #2563eb);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Trust Stats Grid */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-top: 10px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 22px;
  text-align: left;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--neon-cyan);
}

.stat-card.sec::before { background: var(--neon-emerald); }
.stat-card.sol::before { background: var(--neon-amber); }
.stat-card.sla::before { background: var(--neon-purple); }

.stat-val {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
.section {
  padding: clamp(50px, 8vw, 80px) 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--neon-cyan);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-desc {
  font-size: clamp(0.9rem, 2vw, 1rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* ==========================================================================
   CARD & PILLAR GRIDS (Mobile friendly auto-fit)
   ========================================================================== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.pillar-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.pillar-card:hover { transform: translateY(-5px); }
.pillar-card.p1:hover { border-color: var(--neon-cyan); box-shadow: var(--glow-cyan); }
.pillar-card.p2:hover { border-color: var(--neon-emerald); box-shadow: var(--glow-emerald); }
.pillar-card.p3:hover { border-color: var(--neon-amber); box-shadow: var(--glow-amber); }

.pillar-image-wrap {
  position: relative;
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: #0d131f;
}

.pillar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.pillar-card:hover .pillar-image {
  transform: scale(1.06);
}

.pillar-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, var(--bg-card), transparent);
  pointer-events: none;
}

.pillar-badge-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 6px;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.p1 .pillar-badge-tag {
  background: rgba(0, 240, 255, 0.25);
  border: 1px solid rgba(0, 240, 255, 0.5);
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.p2 .pillar-badge-tag {
  background: rgba(16, 185, 129, 0.25);
  border: 1px solid rgba(16, 185, 129, 0.5);
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.p3 .pillar-badge-tag {
  background: rgba(245, 158, 11, 0.25);
  border: 1px solid rgba(245, 158, 11, 0.5);
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.pillar-content {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.pillar-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.pillar-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
}

.sub-service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
  flex-grow: 1;
}

.sub-service-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.sub-service-item svg { flex-shrink: 0; margin-top: 3px; }
.p1 .sub-service-item svg { color: var(--neon-cyan); }
.p2 .sub-service-item svg { color: var(--neon-emerald); }
.p3 .sub-service-item svg { color: var(--neon-amber); }

/* ==========================================================================
   HIKVISION-STYLE SOLUTIONS INDUSTRY VERTICAL CARDS
   ========================================================================== */
.verticals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.vertical-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  color: inherit;
}

.vertical-card:hover {
  transform: translateY(-5px);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.vertical-img-box {
  height: 180px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.25), rgba(0, 240, 255, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  position: relative;
  border-bottom: 1px solid var(--border-glass);
}

.vertical-img-box .vertical-tag-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-glass);
  color: var(--neon-cyan);
}

.vertical-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.vertical-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.vertical-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.vertical-action {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Detail Section for Vertical Solutions */
.vertical-detail-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass-glow);
  border-radius: 20px;
  padding: clamp(24px, 5vw, 40px);
  margin-bottom: 36px;
  box-shadow: var(--card-shadow);
}

.vertical-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 768px) {
  .vertical-detail-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ==========================================================================
   PRODUCTS & BRAND FILTER TABS
   ========================================================================== */
.filter-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 42px;
}

.filter-tab-btn:hover,
.filter-tab-btn.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--neon-cyan);
}

.product-brand-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--neon-cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ==========================================================================
   PORTFOLIO & CASE STUDIES
   ========================================================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.portfolio-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-4px);
}

.portfolio-img-box {
  height: 180px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 240, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border-bottom: 1px solid var(--border-glass);
}

.portfolio-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  margin-bottom: 6px;
}

.portfolio-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.portfolio-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-grow: 1;
}

.portfolio-meta-box {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 12px;
  background: rgba(0,0,0,0.25);
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  color: var(--text-dim);
}

/* ==========================================================================
   ABOUT & TRUST CARDS
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.faq-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: border-color 0.25s ease, transform 0.2s ease;
}

.faq-card:hover {
  border-color: var(--neon-cyan);
  transform: translateY(-2px);
}

.faq-q {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q span.faq-icon {
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-weight: 800;
}

.faq-a {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 24px;
}

/* ==========================================================================
   SOLAR ROI CALCULATOR (in footer / tools)
   ========================================================================== */
.calc-container {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass-glow);
  border-radius: 24px;
  padding: clamp(24px, 4vw, 40px);
  box-shadow: var(--glow-cyan), var(--card-shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
  margin-bottom: 30px;
}

@media (max-width: 860px) {
  .calc-container { grid-template-columns: 1fr; }
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.input-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.input-value-badge {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.1);
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--neon-cyan);
  cursor: pointer;
  box-shadow: var(--glow-cyan);
}

.calc-results-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: clamp(20px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.result-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.result-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

/* ==========================================================================
   CONTACT FORM CARD
   ========================================================================== */
.contact-form-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--card-shadow);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-glass);
  background: var(--bg-surface);
  padding: 60px 0 30px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  margin-bottom: 40px;
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.85rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-glass);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   FLOATING CHATBOT WIDGET
   ========================================================================== */
.floating-chatbot-wrapper {
  position: fixed;
  bottom: clamp(160px, 20vh, 220px);
  right: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.chat-trigger-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--glow-cyan), 0 8px 25px rgba(0,0,0,0.4);
  position: relative;
  animation: floatGlow 3s infinite ease-in-out;
}

@keyframes floatGlow {
  0%, 100% {
    transform: translateY(0);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4), 0 8px 25px rgba(0,0,0,0.4);
  }
  50% {
    transform: translateY(-5px);
    box-shadow: 0 0 35px rgba(0, 240, 255, 0.75), 0 0 15px rgba(0, 102, 255, 0.6), 0 12px 30px rgba(0,0,0,0.5);
  }
}

.chat-trigger-btn img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  display: block;
}

.chat-status-dot {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 14px;
  height: 14px;
  background: #10b981;
  border: 2px solid var(--bg-base);
  border-radius: 50%;
}

.chatbot-drawer {
  position: fixed;
  bottom: clamp(220px, 26vh, 280px);
  right: 20px;
  width: 360px;
  max-width: calc(100vw - 40px);
  background: var(--bg-surface);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass-glow);
  border-radius: 20px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.8), var(--glow-cyan);
  z-index: 1000;
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.25s ease-out;
}

.chatbot-drawer.active { display: flex; }

.chat-header {
  padding: 16px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 240, 255, 0.15));
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 380px;
  overflow-y: auto;
}

.chat-bubble-bot {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  padding: 12px;
  border-radius: 12px;
  font-size: 0.85rem;
  line-height: 1.45;
}

.chat-quick-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.chat-action-btn:hover {
  border-color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  color: var(--neon-cyan);
}

/* ==========================================================================
   PRIVACY TOAST
   ========================================================================== */
.privacy-toast {
  position: fixed;
  bottom: 24px;
  left: 20px;
  max-width: 380px;
  background: var(--bg-surface);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
  box-shadow: var(--card-shadow);
  z-index: 998;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.privacy-toast button {
  background: var(--neon-blue);
  border: none;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  min-height: 36px;
}

/* ==========================================================================
   MODAL RFQ
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: var(--glass-blur);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass-glow);
  border-radius: 20px;
  width: 100%;
  max-width: 520px;
  padding: clamp(20px, 4vw, 32px);
  box-shadow: var(--glow-cyan);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-input, .modal-select, .modal-textarea {
  width: 100%;
  padding: 11px 14px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  color: #0f172a;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  box-sizing: border-box;
  min-height: 44px;
}

.modal-textarea {
  min-height: 80px;
}

.modal-select {
  background-color: #ffffff;
  color: #0f172a;
  cursor: pointer;
}

.modal-select option {
  background: #ffffff;
  color: #0f172a;
  padding: 10px;
}

[data-theme="dark"] .modal-input,
[data-theme="dark"] .modal-select,
[data-theme="dark"] .modal-textarea {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #f8fafc;
}

[data-theme="dark"] .modal-select option {
  background: #0f172a;
  color: #f8fafc;
}

[data-theme="light"] .modal-box {
  background: #ffffff;
  border-color: rgba(0, 102, 255, 0.2);
}

[data-theme="light"] .modal-input,
[data-theme="light"] .modal-select,
[data-theme="light"] .modal-textarea {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: #0f172a;
}

[data-theme="light"] .modal-select option {
  background: #ffffff;
  color: #0f172a;
}

.modal-input:focus, .modal-select:focus, .modal-textarea:focus {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.modal-input.input-error, .modal-select.input-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.4) !important;
}

.form-error-msg {
  color: #ef4444;
  font-size: 0.75rem;
  margin-top: 4px;
  display: none;
}

.hp-field {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  height: 0;
  width: 0;
  z-index: -1;
  pointer-events: none;
  display: none !important;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   SOLAR CALCULATOR MODAL & COMPONENTS
   ========================================================================== */
.solar-modal-box {
  max-width: 600px;
}

.input-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.input-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.input-value-badge {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  padding: 3px 10px;
  border-radius: 6px;
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--border-glass-glow);
  outline: none;
  cursor: pointer;
  margin: 8px 0 4px 0;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
  cursor: pointer;
  border: none;
}

.calc-results-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 14px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-glass);
}

.result-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.result-label {
  color: var(--text-muted);
  font-weight: 500;
}

.result-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
}