/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --c-bg: #0a1628;
  --c-bg-alt: #0f1f3a;
  --c-bg-card: #152744;
  --c-bg-card-hover: #1a2f52;
  --c-primary: #00d4ff;
  --c-primary-dark: #0099cc;
  --c-primary-glow: rgba(0, 212, 255, 0.15);
  --c-accent: #00ff9d;
  --c-text: #e8f0ff;
  --c-text-dim: #8ba3c7;
  --c-text-muted: #5a7299;
  --c-border: rgba(0, 212, 255, 0.12);
  --c-white: #ffffff;
  --c-red: #ff4757;
  --c-gradient-1: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  --c-gradient-2: linear-gradient(135deg, #0a1628 0%, #0f1f3a 100%);
  --c-gradient-hero: linear-gradient(160deg, #0a1628 0%, #0d2548 40%, #0a1628 100%);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.2);
  --header-h: 56px;
  --nav-h: 64px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w: 480px;
  --font: 'Inter', 'Noto Sans SC', 'Noto Sans Arabic', sans-serif;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  overflow-x: hidden;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
  min-height: 100vh;
}

/* ===== RTL Support ===== */
[dir="rtl"] {
  direction: rtl;
  text-align: right;
}

[dir="rtl"] body {
  font-family: 'Noto Sans Arabic', 'Inter', sans-serif;
}

[dir="rtl"] .header-actions {
  flex-direction: row-reverse;
}

[dir="rtl"] .lang-dropdown {
  left: 0;
  right: auto;
}

[dir="rtl"] .product-scroll {
  direction: ltr; /* Keep horizontal scroll LTR for consistency */
}

[dir="rtl"] .feature-grid,
[dir="rtl"] .app-grid,
[dir="rtl"] .cert-grid {
  direction: rtl;
}

[dir="rtl"] .contact-row {
  flex-direction: row-reverse;
  justify-content: flex-start;
}

[dir="rtl"] .nav-tab span {
  direction: rtl;
}

[dir="rtl"] .bottom-nav {
  /* RTL keeps the same layout for bottom nav */
}

/* ===== Loader ===== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loader.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loader-pulse {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--c-gradient-1);
  animation: pulse 1.2s ease-in-out infinite;
  box-shadow: var(--shadow-glow);
}

@keyframes pulse {
  0%, 100% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
}

.loader p {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-primary);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-w);
  z-index: 1000;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--c-text);
  font-weight: 800;
  font-size: 18px;
}

.logo-icon {
  font-size: 30px;
  filter: drop-shadow(0 0 8px var(--c-primary-glow));
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:active {
  transform: scale(0.95);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  min-width: 140px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: 100;
}

.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  color: var(--c-text);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  text-align: start;
}

.lang-dropdown button:hover,
.lang-dropdown button:active {
  background: var(--c-bg-card-hover);
}

.lang-dropdown button.active {
  background: var(--c-primary-glow);
  color: var(--c-primary);
}

/* ===== Bottom Fixed Navigation ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-w);
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--c-border);
  padding-bottom: var(--safe-bottom);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: var(--c-text-muted);
  font-size: 10px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding-top: 8px;
}

.nav-tab svg {
  transition: var(--transition);
}

.nav-tab.active {
  color: var(--c-primary);
}

.nav-tab.active svg {
  filter: drop-shadow(0 0 6px var(--c-primary-glow));
}

.nav-tab.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 3px;
  background: var(--c-primary);
  border-radius: 0 0 3px 3px;
  box-shadow: 0 0 8px var(--c-primary-glow);
}

/* ===== Pages ===== */
.page {
  display: none;
  min-height: 100vh;
  padding-top: var(--header-h);
  padding-bottom: calc(var(--nav-h) + 16px);
}

.page.active {
  display: block;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 40px 20px 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--c-gradient-hero);
  z-index: -1;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -20%;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(0, 255, 157, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.25;
  background: linear-gradient(135deg, #e8f0ff 0%, #00d4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  animation: fadeInUp 0.6s ease;
}

.hero-subtitle {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.6;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-stat {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  transition: var(--transition);
}

.hero-stat:active {
  transform: scale(0.97);
  border-color: var(--c-primary);
}

.hero-stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1;
}

.hero-stat-label {
  font-size: 11px;
  color: var(--c-text-dim);
  margin-top: 4px;
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: var(--c-bg);
  clip-path: polygon(0 100%, 100% 100%, 100% 0, 75% 50%, 50% 0, 25% 50%, 0 0);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Sections ===== */
.section {
  padding: 48px 16px;
}

.section-alt {
  background: var(--c-bg-alt);
}

.section-header {
  margin-bottom: 24px;
  text-align: center;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}

.section-subtitle {
  font-size: 13px;
  color: var(--c-text-dim);
}

/* ===== Product Cards (Horizontal Scroll) ===== */
.product-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 16px 8px;
  margin: 0 -16px;
  scrollbar-width: none;
}

.product-scroll::-webkit-scrollbar {
  display: none;
}

.product-card {
  flex: 0 0 240px;
  scroll-snap-align: start;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card:active {
  transform: scale(0.97);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-gradient-1);
  opacity: 0.8;
}

.product-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.product-hp {
  display: inline-block;
  background: var(--c-primary-glow);
  color: var(--c-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.product-id {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  font-family: 'Courier New', monospace;
}

.product-name {
  font-size: 13px;
  color: var(--c-text-dim);
  margin-bottom: 12px;
  line-height: 1.4;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--c-text-muted);
}

.product-tag.temp {
  background: rgba(0, 212, 255, 0.1);
  color: var(--c-primary);
}

/* View All Button */
.view-all-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 20px auto 0;
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  width: fit-content;
  transition: var(--transition);
}

.view-all-btn:active {
  background: var(--c-primary-glow);
  transform: scale(0.97);
}

/* ===== Feature Grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.feature-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.feature-card:active {
  transform: scale(0.97);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.feature-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}

.feature-desc {
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* ===== Smart Grid ===== */
.smart-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.smart-card {
  display: flex;
  gap: 14px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.smart-card:active {
  transform: scale(0.98);
}

.smart-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--c-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.smart-text h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.smart-text p {
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* ===== Applications Grid ===== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.app-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 14px 8px 10px;
  transition: var(--transition);
  cursor: pointer;
  overflow: hidden;
}

.app-item:hover {
  border-color: var(--c-primary);
  background: rgba(0, 212, 255, 0.06);
}

.app-item:active {
  transform: scale(0.95);
  border-color: var(--c-primary);
}

.app-item-hint {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-primary);
  color: #06121f;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4);
  animation: appHintPulse 2s infinite;
}

[dir="rtl"] .app-item-hint {
  right: auto;
  left: 6px;
}

@keyframes appHintPulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(0, 212, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0); }
}

.app-item-icon {
  font-size: 36px;
}

.app-item-name {
  font-size: 12px;
  color: var(--c-text-dim);
  text-align: center;
  font-weight: 500;
}

.app-item-tap-hint {
  font-size: 10px;
  color: var(--c-primary);
  text-align: center;
  opacity: 0.85;
  font-weight: 500;
  letter-spacing: 0.2px;
}

/* ===== Services ===== */
.service-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.service-card:active {
  transform: scale(0.98);
}

.service-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--c-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.service-text h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.service-text p {
  font-size: 12px;
  color: var(--c-text-dim);
}

/* ===== CTA Banner ===== */
.cta-banner {
  padding: 48px 20px;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(0, 255, 157, 0.05) 100%);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.cta-banner h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #e8f0ff 0%, #00d4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-banner p {
  font-size: 14px;
  color: var(--c-text-dim);
  margin-bottom: 20px;
  line-height: 1.6;
}

.cta-btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--c-gradient-1);
  color: var(--c-bg);
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.cta-btn:active {
  transform: scale(0.97);
  box-shadow: 0 2px 10px rgba(0, 212, 255, 0.2);
}

/* ===== Category Filters (Two-Level) ===== */
.category-filters {
  margin-bottom: 20px;
}

.filter-level {
  margin-bottom: 12px;
}

.filter-level-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0;
  margin: 0;
  scrollbar-width: none;
}

.filter-tabs::-webkit-scrollbar { display: none; }

.filter-tab {
  flex-shrink: 0;
  padding: 8px 16px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.filter-tab.active {
  background: var(--c-gradient-1);
  color: var(--c-bg);
  border-color: transparent;
  font-weight: 700;
}

/* ===== Product Grid (Full) ===== */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.product-grid .product-card {
  flex: none;
  width: 100%;
  display: block;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
}

.product-grid .product-card .product-info {
  flex: 1;
}

.product-grid .product-card .product-icon {
  margin-bottom: 0;
  font-size: 36px;
}

/* ===== About Page ===== */
.about-hero {
  text-align: center;
}

.about-content {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.7;
  margin-top: 12px;
  margin-bottom: 24px;
}

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

.about-stat {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.about-stat-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--c-accent);
}

.about-stat-label {
  font-size: 11px;
  color: var(--c-text-dim);
  margin-top: 4px;
}

/* Commitment */
.commitment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.commitment-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
}

.commitment-icon {
  font-size: 24px;
}

.commitment-text {
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.4;
}

/* Core Tech */
.coretech-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.coretech-card {
  display: flex;
  gap: 14px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.coretech-card:active {
  transform: scale(0.98);
}

.coretech-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--c-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.coretech-text h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.coretech-text p {
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 20px 12px;
}

.cert-icon {
  font-size: 32px;
}

.cert-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text);
}

/* ===== Contact Page ===== */
.contact-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  margin-bottom: 20px;
}

.contact-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.contact-card h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  text-align: start;
  font-size: 13px;
  color: var(--c-text-dim);
  line-height: 1.5;
}

.contact-label {
  font-size: 16px;
  flex-shrink: 0;
}

.contact-form-wrap {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
}

.contact-form-wrap h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-primary-glow);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--c-text-muted);
}

.contact-form button {
  margin-top: 4px;
}

/* QR Code Section */
.contact-qr-section {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-qr-section:empty {
  display: none;
}

.qr-code-item {
  flex: 1 1 140px;
  max-width: 200px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.qr-code-item:empty {
  display: none;
}

.qr-code-item img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: white;
  padding: 6px;
}

.qr-code-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-dim);
}

.qr-code-empty {
  display: none;
}

/* ===== Footer ===== */
.footer {
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  padding: 32px 20px calc(20px + var(--nav-h) + var(--safe-bottom));
}

.footer-top {
  text-align: center;
  margin-bottom: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 20px;
  font-weight: 800;
}

.footer-company {
  font-size: 13px;
  color: var(--c-text);
  margin-bottom: 4px;
}

.footer-address {
  font-size: 12px;
  color: var(--c-text-dim);
  line-height: 1.5;
  margin-bottom: 8px;
}

.footer-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

.footer-contact a {
  font-size: 12px;
  color: var(--c-primary);
  text-decoration: none;
}

.footer-dot {
  color: var(--c-text-muted);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
}

.footer-bottom p {
  font-size: 11px;
  color: var(--c-text-muted);
}

.admin-link {
  font-size: 11px;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

/* Footer QR codes */
.footer-qr-section {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-top: 16px;
}

.footer-qr-section:empty {
  display: none;
  margin-top: 0;
}

.footer-qr-item:empty {
  display: none;
}

.footer-qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.footer-qr-item img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: white;
  padding: 4px;
}

.footer-qr-item .qr-code-title {
  font-size: 11px;
  color: var(--c-text-dim);
}

.admin-link:hover,
.admin-link:active {
  color: var(--c-primary);
}

/* ===== Animations ===== */
.fade-in {
  animation: fadeIn 0.5s ease;
}

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

/* ===== Responsive (Tablet/Desktop) ===== */
@media (min-width: 481px) {
  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .app-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .app-item {
    padding: 22px 12px;
  }

  .app-item-icon {
    font-size: 40px;
  }

  .app-item-name {
    font-size: 13px;
  }

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

  .commitment-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .cert-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--c-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--c-bg-card-hover);
  border-radius: 3px;
}

/* ===== Logo Image ===== */
.logo-icon img {
  width: 56px;
  height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--c-primary-glow));
}

/* ===== Product Card Clickable ===== */
.product-card {
  cursor: pointer;
}

.product-card .product-arrow {
  position: absolute;
  bottom: 12px;
  right: 12px;
  color: var(--c-primary);
  font-size: 16px;
  opacity: 0.6;
  transition: var(--transition);
}

.product-card:active .product-arrow {
  opacity: 1;
  transform: translateX(2px);
}

/* Product card with image */
.product-card-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

/* ===== Product Detail Overlay ===== */
.product-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: flex-end;
  justify-content: center;
}

.product-detail-overlay.show {
  display: flex;
}

.product-detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-detail-overlay.show .product-detail-backdrop {
  opacity: 1;
}

.product-detail-sheet {
  position: relative;
  width: 100%;
  max-width: var(--max-w);
  max-height: 92vh;
  background: var(--c-bg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.5);
  border-top: 1px solid var(--c-border);
}

.product-detail-overlay.show .product-detail-sheet {
  transform: translateY(0);
}

.detail-handle {
  position: sticky;
  top: 0;
  z-index: 5;
  width: 40px;
  height: 4px;
  background: var(--c-text-muted);
  border-radius: 2px;
  margin: 10px auto 0;
  opacity: 0.5;
}

.detail-close {
  position: absolute;
  top: 12px;
  right: 16px;
  z-index: 10;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.detail-close:active {
  transform: scale(0.9);
  color: var(--c-primary);
  border-color: var(--c-primary);
}

.detail-content {
  padding: 8px 20px calc(40px + var(--nav-h) + var(--safe-bottom));
}

/* Detail: Main Image */
.detail-main-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  border: 1px solid var(--c-border);
}

.detail-main-image-placeholder {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  font-size: 48px;
}

/* Detail: Header */
.detail-header {
  margin-bottom: 16px;
}

.detail-id {
  font-size: 13px;
  font-family: 'Courier New', monospace;
  color: var(--c-text-dim);
  margin-bottom: 4px;
}

.detail-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 8px;
  line-height: 1.3;
}

.detail-hp-badge {
  display: inline-block;
  background: var(--c-primary-glow);
  color: var(--c-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
}

/* Detail: Specs */
.detail-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}

.detail-spec {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.detail-spec-label {
  font-size: 11px;
  color: var(--c-text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-spec-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
}

/* Detail: Description */
.detail-desc-section {
  margin-bottom: 24px;
}

.detail-desc-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 10px;
}

.detail-desc {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.7;
}

/* Detail: Gallery */
.detail-gallery {
  margin-bottom: 24px;
}

.detail-gallery-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 12px;
}

.detail-gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.detail-gallery-item {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  cursor: pointer;
  transition: var(--transition);
}

.detail-gallery-item:active {
  transform: scale(0.95);
  border-color: var(--c-primary);
}

/* Detail: CTA */
.detail-cta {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.detail-cta .cta-btn {
  flex: 1;
  text-align: center;
}

.detail-cta .cta-btn.outline {
  background: transparent;
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  box-shadow: none;
}

/* RTL for detail */
[dir="rtl"] .detail-close {
  right: auto;
  left: 16px;
}

[dir="rtl"] .product-card .product-arrow {
  right: auto;
  left: 12px;
}

/* ===== Application Detail Overlay ===== */
.app-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.app-detail-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.app-detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 8, 20, 0.85);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.app-detail-overlay.show .app-detail-backdrop {
  opacity: 1;
}

.app-detail-sheet {
  position: relative;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  background: var(--c-bg);
  border-radius: 24px 24px 0 0;
  border: 1px solid var(--c-border);
  border-bottom: none;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.4);
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  z-index: 1;
}

.app-detail-overlay.show .app-detail-sheet {
  transform: translateY(0);
}

.app-detail-sheet .detail-close {
  top: 12px;
  right: 16px;
}

.app-detail-sheet .detail-content {
  padding: 24px 20px calc(30px + var(--nav-h) + var(--safe-bottom));
}

.app-detail-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-top: 8px;
}

.app-detail-icon {
  font-size: 48px;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
}

.app-detail-title {
  flex: 1;
  font-size: 22px;
  font-weight: 800;
  color: var(--c-text);
  line-height: 1.3;
}

.app-detail-desc {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.7;
  margin-bottom: 24px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.app-media-section {
  margin-bottom: 24px;
}

.app-media-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-media-item {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.app-media-item img {
  width: 100%;
  height: auto;
  display: block;
  cursor: pointer;
}

.app-media-item video {
  width: 100%;
  height: auto;
  display: block;
  background: #000;
}

.app-media-caption {
  padding: 12px 14px;
  font-size: 13px;
  color: var(--c-text-dim);
  border-top: 1px solid var(--c-border);
}

[dir="rtl"] .app-detail-sheet .detail-close {
  right: auto;
  left: 16px;
}