:root {
  /* Dark theme (default) */
  --ko-dark: #0a0e17;
  --ko-navy: #111827;
  --ko-steel: #1e293b;
  --ko-silver: #94a3b8;
  --ko-light: #e2e8f0;
  --ko-white: #f8fafc;
  --ko-accent: #3b82f6;
  --ko-accent-bright: #60a5fa;
  --ko-accent-glow: rgba(59, 130, 246, 0.15);
  --ko-orange: #f97316;
  --ko-green: #22c55e;
  --ko-red: #ef4444;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light theme */
html[data-theme="light"] {
  --ko-dark: #f5f7fa;
  --ko-navy: #ffffff;
  --ko-steel: #e8eef5;
  --ko-silver: #6b7280;
  --ko-light: #374151;
  --ko-white: #1f2937;
  --ko-accent: #2563eb;
  --ko-accent-bright: #3b82f6;
  --ko-accent-glow: rgba(37, 99, 235, 0.1);
  --ko-orange: #f97316;
  --ko-green: #16a34a;
  --ko-red: #dc2626;
}

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

html { 
  scroll-behavior: smooth; 
  transition: background-color var(--transition), color var(--transition);
}

body {
  font-family: 'Onest', sans-serif;
  background: var(--ko-dark);
  color: var(--ko-light);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ===== NOISE TEXTURE OVERLAY ===== */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--ko-dark); }
::-webkit-scrollbar-thumb { background: var(--ko-steel); border-radius: 3px; }

/* ===== TOP HEADER BAR ===== */
.top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
  transition: background-color var(--transition), border-color var(--transition);
}

html[data-theme="light"] .top-bar {
  background: rgba(255, 255, 255, 0.15);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 50px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  transition: all var(--transition);
}

.logo-mark {
  display: none;
}

.logo-text {
  display: none;
}

.breadcrumbs-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  flex: 1;
  margin-left: 10px;
}

.breadcrumbs-bar .breadcrumb-item {
  color: var(--ko-silver);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumbs-bar .breadcrumb-item:hover {
  color: var(--ko-accent-bright);
}

.breadcrumbs-bar .breadcrumb-item.active {
  color: var(--ko-light);
  font-weight: 500;
}

.breadcrumbs-bar .breadcrumb-separator {
  color: var(--ko-steel);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  color: var(--ko-silver);
  transition: color var(--transition);
  position: relative;
}

.theme-toggle:hover {
  color: var(--ko-accent-bright);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  position: absolute;
  transition: opacity 0.2s ease, transform 0.3s ease;
}

.sun-icon {
  opacity: 1;
  transform: rotate(0deg);
}

.moon-icon {
  opacity: 0;
  transform: rotate(-180deg);
}

html[data-theme="light"] .sun-icon {
  opacity: 0;
  transform: rotate(180deg);
}

html[data-theme="light"] .moon-icon {
  opacity: 1;
  transform: rotate(0deg);
}

/* ===== BOTTOM NAVIGATION ===== */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: auto;
  min-height: 72px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  padding: 8px 0;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
  transition: none;
}

html[data-theme="light"] .bottom-nav {
  background: rgba(255, 255, 255, 0.15);
  border-top-color: rgba(0, 0, 0, 0.08);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 12px;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
  position: relative;
}

.nav-item.active {
  background: var(--ko-accent-glow);
}

.nav-item.active .nav-icon { color: var(--ko-accent-bright); }
.nav-item.active .nav-label { color: var(--ko-accent-bright); }

.nav-icon {
  width: 22px; height: 22px;
  color: var(--ko-silver);
  transition: var(--transition);
}

.nav-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--ko-silver);
  transition: var(--transition);
  letter-spacing: 0.2px;
}

/* ===== PAGE CONTAINER ===== */
.page-container {
  padding-top: 56px;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0));
  min-height: 100dvh;
  margin: 0 auto;
  max-width: 1200px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.page {
  display: none;
}

.page.active { 
  display: block !important;
}

.page.active .fade-up {
  opacity: 1;
  transform: translateY(0);
}

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

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  padding: 20px 20px 40px;
  overflow: hidden;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 13px;
}

.breadcrumb-item {
  color: var(--ko-silver);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.breadcrumb-item:hover {
  color: var(--ko-accent-bright);
}

.breadcrumb-item.active {
  color: var(--ko-white);
  font-weight: 500;
}

.breadcrumb-separator {
  color: var(--ko-steel);
  font-size: 11px;
}

.hero-badge {
  display: none;
}

.hero-text {
  margin-bottom: 28px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--ko-light);
  font-weight: 500;
}

.hero-text p {
  margin: 0 0 12px 0;
}

.hero-text p:last-child {
  margin-bottom: 0;
}

.hero h1 {
  font-family: 'Unbounded', sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ko-white);
  margin-bottom: 12px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--ko-accent-bright), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 15px;
  color: var(--ko-silver);
  line-height: 1.6;
  max-width: 360px;
}

/* ===== PRODUCT CARD ===== */
.product-card {
  margin: 0 20px 28px;
  background: linear-gradient(145deg, var(--ko-navy), var(--ko-steel));
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  position: relative;
  margin-top: -10px;
}

.product-image-area {
  width: 100%;
  height: 260px;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-main-image {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.gallery-slide {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  flex-shrink: 0;
  backface-visibility: hidden;
}

.product-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--ko-silver);
}

.product-placeholder svg {
  width: 64px; height: 64px;
  opacity: 0.3;
}

.product-placeholder span {
  font-size: 12px;
  opacity: 0.5;
}

.product-info {
  padding: 20px;
}

.product-name {
  font-family: 'Unbounded', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--ko-white);
  margin-bottom: 8px;
}

.product-specs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.spec-tag {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  color: var(--ko-silver);
  border: 1px solid rgba(255,255,255,0.06);
}

.product-desc {
  font-size: 13px;
  color: var(--ko-silver);
  line-height: 1.6;
}

/* ===== QUICK ACTIONS ===== */
.quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 20px;
  margin-bottom: 32px;
}

.quick-action {
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
  cursor: pointer;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.quick-action:hover {
  border-color: rgba(59,130,246,0.3);
  background: rgba(59,130,246,0.05);
}

.quick-action-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.quick-action-icon svg { width: 18px; height: 18px; }

.qa-blue { background: rgba(59,130,246,0.15); color: var(--ko-accent-bright); }
.qa-orange { background: rgba(249,115,22,0.15); color: var(--ko-orange); }
.qa-green { background: rgba(34,197,94,0.15); color: var(--ko-green); }
.qa-red { background: rgba(239,68,68,0.15); color: var(--ko-red); }

.quick-action-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ko-white);
  margin-bottom: 4px;
}

.quick-action-desc {
  font-size: 11px;
  color: var(--ko-silver);
  line-height: 1.4;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  padding: 0 20px;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Unbounded', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--ko-white);
}

.section-subtitle {
  font-size: 13px;
  color: var(--ko-silver);
  margin-top: 4px;
}

/* ===== INSTRUCTION STEPS ===== */
.steps-container {
  padding: 0 20px;
  margin-bottom: 32px;
}

.step-card {
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.step-card.expanded {
  border-color: rgba(59,130,246,0.2);
}

.step-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
}

.step-number {
  width: 36px; height: 36px;
  min-width: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--ko-accent), var(--ko-accent-bright));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: white;
}

.step-title-area { flex: 1; }

.step-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ko-white);
}

.step-time {
  font-size: 11px;
  color: var(--ko-silver);
  margin-top: 2px;
}

.step-chevron {
  width: 20px; height: 20px;
  color: var(--ko-silver);
  transition: var(--transition);
}

.step-card.expanded .step-chevron {
  transform: rotate(180deg);
  color: var(--ko-accent-bright);
}

.step-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

/* ===== PRODUCTS ACCORDION ===== */
.products-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-category {
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  transition: var(--transition);
}

.product-category.expanded .category-header {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.category-header:hover {
  background: rgba(59,130,246,0.05);
}

.category-icon-box {
  width: 32px; height: 32px;
  min-width: 32px;
  border-radius: 8px;
  background: rgba(59,130,246,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ko-accent-bright);
}

.category-icon-box svg { width: 16px; height: 16px; }

.category-info {
  flex: 1;
}

.category-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ko-white);
}

.category-desc {
  font-size: 11px;
  color: var(--ko-silver);
  margin-top: 2px;
}

.category-chevron {
  width: 20px; height: 20px;
  color: var(--ko-silver);
  transition: var(--transition);
}

.product-category.expanded .category-chevron {
  transform: rotate(180deg);
  color: var(--ko-accent-bright);
}

.category-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.product-category.expanded .category-content {
  max-height: 2000px;
}

/* ===== SUBCATEGORIES ===== */
.product-subcategory {
  border-top: 1px solid rgba(255,255,255,0.04);
}

.subcategory-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  padding-left: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.subcategory-header:hover {
  background: rgba(59,130,246,0.05);
}

.subcategory-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--ko-light);
}

.subcategory-chevron {
  width: 18px; height: 18px;
  color: var(--ko-silver);
  transition: var(--transition);
  flex-shrink: 0;
}

.product-subcategory.expanded .subcategory-chevron {
  transform: rotate(180deg);
  color: var(--ko-accent-bright);
}

.subcategory-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.product-subcategory.expanded .subcategory-content {
  max-height: 1200px;
}

/* ===== PRODUCT DETAILS ===== */
.product-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

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

.product-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #141a2e, #0d1220);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.04);
  color: var(--ko-silver);
}

.product-image svg {
  width: 40%; height: 40%;
  opacity: 0.4;
}

.product-specs-detail {
  padding: 16px 18px;
}

.product-description {
  font-size: 13px;
  color: var(--ko-silver);
  line-height: 1.7;
  margin-bottom: 16px;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

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

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-label {
  font-size: 11px;
  color: var(--ko-silver);
  font-weight: 500;
}

.spec-value {
  font-size: 13px;
  color: var(--ko-white);
  font-weight: 500;
}

.step-card.expanded .step-content {
  max-height: 800px;
}

.step-inner {
  padding: 0 18px 18px;
}

.step-desc {
  font-size: 13px;
  color: var(--ko-silver);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* ===== VIDEO PLACEHOLDER ===== */
.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background-size: cover;
  background-position: center;
  background-color: #141a2e;
  background-attachment: local;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.04);
  margin-bottom: 14px;
  transition: transform 0.3s ease;
}

.video-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
  transition: background-color var(--transition);
}

.video-placeholder:hover::before {
  background: rgba(0, 0, 0, 0.35);
}

.video-placeholder:hover {
  transform: scale(1.01);
}

.play-btn {
  width: 70px; height: 70px;
  background: linear-gradient(135deg, rgba(59,130,246,0.95), rgba(59,130,246,0.85));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.4);
  transition: var(--transition);
  z-index: 2;
  box-shadow: 0 8px 32px rgba(59,130,246,0.4);
  position: relative;
}

.play-btn svg { width: 28px; height: 28px; color: white; }

.video-placeholder:hover .play-btn {
  background: linear-gradient(135deg, rgba(59,130,246,1), rgba(59,130,246,0.95));
  transform: scale(1.15);
  box-shadow: 0 10px 40px rgba(59,130,246,0.6);
}

.video-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  z-index: 2;
  text-shadow: 0 2px 8px rgba(0,0,0,0.7), 0 0 20px rgba(59,130,246,0.2);
  letter-spacing: 0.3px;
}

/* ===== IMAGE GALLERY IN STEPS ===== */
.step-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.step-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #141a2e, #0d1220);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.04);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.step-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(59, 130, 246, 0);
  transition: background var(--transition);
  z-index: 1;
  border-radius: 8px;
}

.step-image:hover {
  transform: scale(1.05);
  border-color: rgba(59,130,246,0.4);
  box-shadow: 0 0 20px rgba(59,130,246,0.2), inset 0 0 20px rgba(59,130,246,0.05);
}

.step-image:hover::before {
  background: rgba(59, 130, 246, 0.15);
}

.step-image svg {
  width: 28px; height: 28px;
  color: var(--ko-silver);
  opacity: 0.2;
}

/* ===== TIPS / WARNINGS ===== */
.tip-box {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  display: flex;
  gap: 10px;
}

.tip-box.info {
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.15);
}

.tip-box.warning {
  background: rgba(249,115,22,0.08);
  border: 1px solid rgba(249,115,22,0.15);
}

.tip-box.danger {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.15);
}

.tip-icon {
  width: 20px; height: 20px;
  min-width: 20px;
  margin-top: 1px;
}

.tip-box.info .tip-icon { color: var(--ko-accent-bright); }
.tip-box.warning .tip-icon { color: var(--ko-orange); }
.tip-box.danger .tip-icon { color: var(--ko-red); }

.tip-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ko-light);
}

/* ===== TOOLS PAGE ===== */
.tools-grid {
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.tool-card {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.tool-icon-box {
  width: 48px; height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: rgba(59,130,246,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-icon-box svg {
  width: 24px; height: 24px;
  color: var(--ko-accent-bright);
}

.tool-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ko-white);
  margin-bottom: 3px;
}

.tool-desc {
  font-size: 12px;
  color: var(--ko-silver);
  line-height: 1.4;
}

/* ===== SPECS TABLE ===== */
.specs-table {
  margin: 0 20px 32px;
  background: var(--ko-navy);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}

.specs-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.specs-row:last-child { border-bottom: none; }

.specs-label {
  font-size: 13px;
  color: var(--ko-silver);
}

.specs-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--ko-white);
}

/* ===== FAQ ===== */
.faq-container {
  padding: 0 20px;
  margin-bottom: 32px;
}

.faq-item {
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--ko-white);
  -webkit-tap-highlight-color: transparent;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer { max-height: 300px; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-chevron {
  width: 18px; height: 18px;
  color: var(--ko-silver);
  transition: var(--transition);
  min-width: 18px;
}

.faq-answer-inner {
  padding: 0 16px 14px;
  font-size: 13px;
  color: var(--ko-silver);
  line-height: 1.6;
}

/* ===== ABOUT / COMPANY PAGE ===== */
.about-banner-image {
  margin-top: 16px;
  margin-bottom: 32px;
  overflow: hidden;
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.1);
}

.banner-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  max-height: 400px;
  object-fit: cover;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 0 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.stat-number {
  font-family: 'Unbounded', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--ko-accent-bright);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 10px;
  color: var(--ko-silver);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-cards {
  padding: 0 20px;
  margin-bottom: 32px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.contact-card:hover {
  border-color: rgba(59,130,246,0.2);
}

.contact-icon {
  width: 40px; height: 40px;
  min-width: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg { width: 18px; height: 18px; }

.ci-blue { background: rgba(59,130,246,0.12); color: var(--ko-accent-bright); }
.ci-green { background: rgba(34,197,94,0.12); color: var(--ko-green); }
.ci-orange { background: rgba(249,115,22,0.12); color: var(--ko-orange); }

.contact-text {
  font-size: 13px;
  color: var(--ko-white);
  font-weight: 500;
}

.contact-sub {
  font-size: 11px;
  color: var(--ko-silver);
  margin-top: 2px;
}

/* ===== PROGRESS BAR ===== */
.progress-section {
  padding: 0 20px;
  margin-bottom: 24px;
}

.progress-bar-outer {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--ko-accent), var(--ko-accent-bright));
  border-radius: 3px;
  transition: width 0.6s ease;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--ko-silver);
}

/* ===== CERTIFICATE CARDS ===== */
.cert-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  padding: 0 20px;
  margin-bottom: 28px;
}

.cert-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.1);
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59,130,246,0.3);
  box-shadow: 0 8px 16px rgba(59,130,246,0.15);
}

.cert-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cert-download-badge {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(10,14,23,0.95) 50%);
  padding: 16px 12px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.cert-card:hover .cert-download-badge {
  opacity: 1;
}

.cert-download-badge svg {
  width: 20px;
  height: 20px;
  color: var(--ko-accent-bright);
}

html[data-theme="light"] .cert-download-badge {
  background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.95) 50%);
}

/* ===== CTA BUTTON ===== */
.cta-section {
  padding: 0 20px;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--ko-accent), var(--ko-accent-bright));
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Onest', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.cta-btn:hover { opacity: 0.9; transform: translateY(-1px); }

.cta-btn svg { width: 18px; height: 18px; }

/* ===== FOOTER ===== */
.page-footer {
  padding: 24px 20px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.page-footer p {
  font-size: 11px;
  color: var(--ko-silver);
  opacity: 0.6;
}

/* ===== CHECKLIST ===== */
.checklist {
  padding: 0 20px;
  margin-bottom: 28px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.check-box {
  width: 22px; height: 22px;
  min-width: 22px;
  border-radius: 6px;
  border: 2px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.check-item.checked .check-box {
  background: var(--ko-green);
  border-color: var(--ko-green);
}

.check-box svg {
  width: 14px; height: 14px;
  color: white;
  opacity: 0;
  transition: var(--transition);
}

.check-item.checked .check-box svg { opacity: 1; }

.check-text {
  font-size: 13px;
  color: var(--ko-light);
  transition: var(--transition);
}

.check-item.checked .check-text {
  color: var(--ko-silver);
  text-decoration: line-through;
}

/* ===== ANIMATION UTILS ===== */
.fade-up {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ===== RESPONSIVE DESIGN ===== */
@media (min-width: 768px) {
  .page-container {
    padding-left: 40px;
    padding-right: 40px;
  }

  .hero {
    padding: 60px 40px 50px;
  }

  .section-header {
    padding: 40px 20px 20px;
  }

  .quick-actions {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .tools-grid {
    gap: 20px;
  }

  .specs-table {
    max-width: 600px;
    margin: 0 auto;
  }

  .cta-section {
    flex-direction: row;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 40px;
  }

  .cta-btn {
    flex: 1;
  }

  .cert-row {
    grid-template-columns: repeat(4, 1fr);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
  }

  .about-banner-image {
    margin-top: 20px;
    margin-bottom: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
  }

  .banner-img {
    max-height: 500px;
  }

  .contact-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .video-placeholder {
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
  }

  .step-gallery {
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
  }

  .steps-container {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }

  .checklist {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }

  .progress-section {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 20px;
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ko-silver);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: color var(--transition);
  text-decoration: none;
}

.breadcrumb-item:hover:not(.active) {
  color: var(--ko-accent-bright);
}

.breadcrumb-item.active {
  color: var(--ko-accent-bright);
  font-weight: 600;
}

.breadcrumb-item:not(:last-child)::after {
  content: '→';
  margin-left: 6px;
  color: var(--ko-silver);
}

/* ===== PRODUCTS PAGE ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 0 20px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.product-tile {
  background: var(--ko-navy);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
}

.product-tile:hover {
  border-color: var(--ko-accent-bright);
  background: var(--ko-steel);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(59, 130, 246, 0.15);
}

.product-tile-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--ko-steel), var(--ko-navy));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-placeholder-tile {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ko-silver);
  opacity: 0.5;
}

.product-placeholder-tile svg {
  width: 48px;
  height: 48px;
  stroke-width: 1.5;
}

.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--ko-accent-bright);
  color: var(--ko-dark);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-tile-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-tile-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ko-white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-tile-specs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.spec-badge {
  display: inline-flex;
  align-items: center;
  background: var(--ko-accent-glow);
  color: var(--ko-accent-bright);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid var(--ko-accent-bright);
  opacity: 0.8;
}

.product-tile-desc {
  font-size: 12px;
  color: var(--ko-silver);
  margin-bottom: 12px;
  flex: 1;
  line-height: 1.4;
}

.product-tile-btn {
  background: var(--ko-accent-bright);
  color: var(--ko-dark);
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-tile-btn:hover {
  background: var(--ko-accent);
  transform: scale(1.02);
}

.product-tile-btn:active {
  transform: scale(0.98);
}

/* Delay animations for grid */
.fade-up.delay-1 { animation-delay: 0.1s; }
.fade-up.delay-2 { animation-delay: 0.2s; }
.fade-up.delay-3 { animation-delay: 0.3s; }
.fade-up.delay-4 { animation-delay: 0.4s; }
.fade-up.delay-5 { animation-delay: 0.5s; }

/* Responsive */
@media (max-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(1, 1fr);
    gap: 16px;
  }

  .breadcrumbs {
    padding: 0 16px;
  }
}

/* ===== PRODUCT DETAIL PAGE ===== */
.product-detail {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.product-back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  color: var(--ko-accent-bright);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 24px;
  width: fit-content;
}

.product-back-btn:hover {
  background: var(--ko-steel);
  border-color: var(--ko-accent-bright);
}

.product-back-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.product-detail-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.product-detail-image {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--ko-steel), var(--ko-navy));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: sticky;
  top: 80px;
}

.product-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ko-silver);
  opacity: 0.5;
}

.product-placeholder svg {
  width: 80px;
  height: 80px;
  stroke-width: 1;
}

.product-detail-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.product-detail-title {
  font-family: 'Unbounded', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--ko-white);
  line-height: 1.3;
}

.product-detail-specs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.detail-spec {
  background: var(--ko-accent-glow);
  color: var(--ko-accent-bright);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--ko-accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-detail-desc {
  font-size: 15px;
  color: var(--ko-silver);
  line-height: 1.6;
}

.detail-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: var(--ko-navy);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
}

.feature-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.feature-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ko-silver);
}

.feature-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--ko-accent-bright);
}

@media (max-width: 768px) {
  .product-detail-header {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .product-detail-image {
    position: relative;
    top: auto;
    aspect-ratio: 4/3;
  }

  .product-detail-title {
    font-size: 20px;
  }

  .detail-features {
    flex-direction: column;
  }

  .feature-item {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ===== HIDE BOTTOM NAV FOR PRODUCT PAGES ===== */
.page#page-product-1 .bottom-nav,
.page#page-product-2 .bottom-nav,
.page#page-product-3 .bottom-nav,
.page#page-product-4 .bottom-nav,
.page#page-product-5 .bottom-nav,
.page#page-product-6 .bottom-nav {
  display: none;
}
/* ===== MODALS ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
  animation: slideUp 0.3s ease-in-out;
  padding: 20px;
  box-sizing: border-box;
}

@keyframes slideUp {
  from { transform: translateY(50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-video {
  aspect-ratio: 16 / 9;
  width: 100%;
}

.modal-image {
  max-height: 85vh;
  max-width: 95vw;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-image img {
  max-height: 85vh;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.video-container {
  width: 100%;
  height: 100%;
}

.image-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-gallery {
  width: 95vw;
  height: 90vh;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gallery-modal-container {
  width: 100%;
  height: 85vh;
  position: relative;
  overflow: hidden;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.gallery-modal-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  touch-action: none;
  transform: translate3d(0, 0, 0);
  will-change: transform;
  -webkit-transform: translate3d(0, 0, 0);
  -webkit-will-change: transform;
}

.gallery-modal-slide {
  width: 100%;
  height: 100%;
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-perspective: 1000;
}

.gallery-modal-counter {
  color: var(--ko-white);
  font-size: 14px;
  opacity: 0.7;
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  color: var(--ko-white);
  font-size: 32px;
  cursor: pointer;
  padding: 8px 12px;
  width: auto;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  border-radius: 4px;
  z-index: 10000;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.8);
  opacity: 1;
}

@media (max-width: 768px) {
  .modal {
    padding: 10px;
  }

  .modal-content {
    width: 100%;
    max-width: 100%;
    padding: 10px;
  }
  
  .modal-video {
    aspect-ratio: 16 / 9;
    max-height: 60vh;
  }

  .modal-image {
    max-height: 80vh;
    max-width: 100vw;
  }

  .modal-image img {
    max-height: 80vh;
    max-width: calc(100vw - 40px);
  }
  
  .modal-close {
    top: 5px;
    right: 5px;
    font-size: 28px;
    padding: 6px 10px;
  }
}

@media (max-width: 480px) {
  .modal-content {
    width: 100%;
    padding: 5px;
  }

  .modal-video {
    max-height: 50vh;
  }

  .modal-image {
    max-height: 75vh;
  }

  .modal-image img {
    max-height: 75vh;
    max-width: calc(100vw - 20px);
  }
  
  .modal-close {
    top: 2px;
    right: 2px;
    font-size: 24px;
    padding: 4px 8px;
  }
}