/* ==========================================================================
   SoftwareKatalog.id - Modern Elegant Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Theme Variables (Dark Mode Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(31, 41, 55, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(59, 130, 246, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --gradient-brand: linear-gradient(135deg, #3b82f6 0%, #06b6d4 50%, #8b5cf6 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.18), transparent 70%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(59, 130, 246, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Overrides */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(0, 0, 0, 0.02);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-glow: rgba(59, 130, 246, 0.3);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.12), transparent 70%);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 24px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select {
  font-family: inherit;
  font-size: inherit;
}

/* Background Ambient Glow */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background: var(--gradient-glow);
}

.bg-ambient-orb {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.orb-1 { top: -100px; right: -100px; background: var(--accent-blue); }
.orb-2 { bottom: 10%; left: -150px; background: var(--accent-purple); }

/* Layout Wrapper */
.app-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  transition: var(--transition-normal);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-primary);
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.brand-text span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--accent-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: rotate(15deg);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient-brand);
  color: #ffffff;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
  transition: var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-glass);
  color: var(--text-primary);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.08);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: #1eb956;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* Hero Section */
.hero {
  padding: 4.5rem 2rem 3rem;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent-blue);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
}

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

.hero-preview-container {
  position: relative;
  width: 100%;
  max-width: 580px;
  margin: 0 auto;
}

.hero-image-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.6rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  width: 100%;
  aspect-ratio: 16 / 10;
  max-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.hero-img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  display: block;
  object-fit: cover;
  object-position: top center;
}

/* Hero Image Slider */
.hero-slider-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.hero-slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
}

.hero-slide-item.active {
  opacity: 1;
  visibility: visible;
}

.hero-slide-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-md);
}

.slider-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(11, 15, 25, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  z-index: 25;
  opacity: 0;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
}

.hero-image-card:hover .slider-nav-btn {
  opacity: 1;
}

.slider-nav-btn.prev { left: 12px; }
.slider-nav-btn.next { right: 12px; }

.slider-nav-btn:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.slider-dots-container {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 25;
  padding: 4px 10px;
  background: rgba(11, 15, 25, 0.5);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s ease;
}

.slider-dot.active {
  width: 22px;
  border-radius: 10px;
  background: var(--accent-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.6);
}

.hero-floating-badge {
  position: absolute;
  bottom: -22px;
  left: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 30;
  pointer-events: none;
}

.badge-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* Guarantee Features Bar */
.guarantee-section {
  max-width: 1280px;
  margin: 1rem auto 4rem;
  padding: 0 2rem;
}

.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem 2rem;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}

.guarantee-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.guarantee-icon {
  font-size: 1.5rem;
  color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.guarantee-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.guarantee-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Catalog Section */
.catalog-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
  width: 100%;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3rem;
}

.section-tag {
  color: var(--accent-cyan);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Filter & Search Bar */
.catalog-controls {
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.search-box-wrapper {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.search-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem 1rem 3.2rem;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  backdrop-filter: blur(10px);
  transition: var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

.search-clear-btn {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: none;
}

.filter-categories {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.filter-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.filter-badge {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: var(--transition-normal);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-header-banner {
  height: 180px;
  position: relative;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-size: cover;
  background-position: center;
}

.card-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(11, 15, 25, 0.3) 0%, rgba(11, 15, 25, 0.95) 100%);
  z-index: 1;
}

.card-header-content {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.badge-tag {
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.rating-tag {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  color: #fbbf24;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.card-tagline {
  font-size: 0.88rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-features-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.feature-mini-pill {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.card-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price-box {
  display: flex;
  flex-direction: column;
}

.price-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.price-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.price-val span {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Modal UI */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: var(--transition-normal);
}

.modal-backdrop.active .modal-card {
  transform: scale(1);
}

.modal-card form {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  overflow: hidden;
  min-height: 0;
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  flex-shrink: 0;
}

.modal-title-box {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.modal-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.modal-close-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-rose);
  background: rgba(244, 63, 94, 0.1);
}

.modal-tabs {
  display: flex;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card);
  gap: 1rem;
  flex-shrink: 0;
}

.tab-btn {
  background: none;
  border: none;
  padding: 1rem 0.5rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

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

.tab-btn.active {
  color: var(--accent-blue);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 2px;
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  flex-grow: 1;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
}

.modal-footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  flex-shrink: 0;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Features Grid inside Modal */
.features-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.feature-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  gap: 1rem;
}

.feature-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.feature-detail-title {
  font-weight: 700;
  font-size: 0.98rem;
  margin-bottom: 0.25rem;
}

.feature-detail-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Specs List */
.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--border-color);
}

.specs-table td {
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
}

.specs-label {
  font-weight: 600;
  color: var(--text-secondary);
  width: 35%;
}

.specs-val {
  color: var(--text-primary);
  font-weight: 500;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.price-card.featured {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.05);
}

.price-card-tier {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.price-card-amount {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-blue);
  margin-bottom: 0.25rem;
}

.price-card-period {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.price-card-note {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Floating WhatsApp Button */
.whatsapp-float-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
  z-index: 99;
  transition: var(--transition-normal);
  animation: pulse-glow 2s infinite;
}

.whatsapp-float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Testimonials & FAQ Section */
.info-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.testimonial-stars {
  color: #fbbf24;
  margin-bottom: 1rem;
}

.testimonial-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.author-name {
  font-weight: 700;
  font-size: 0.9rem;
}

.author-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-wrapper {
  max-width: 800px;
  margin: 2rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-question {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: none;
  border-top: 1px solid var(--border-color);
  margin-top: 0.5rem;
  padding-top: 1rem;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-question {
  color: var(--accent-blue);
}

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

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

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

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

}

/* ==========================================================================
   Article & Blog Portal Styles
   ========================================================================== */

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: var(--transition-normal);
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.article-card-cover {
  height: 190px;
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 1.25rem;
}

.article-card-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(11,15,25,0.2) 0%, rgba(11,15,25,0.85) 100%);
}

.article-badge {
  position: relative;
  z-index: 2;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  display: inline-block;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.article-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.article-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.article-card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.author-avatar-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-name-sm {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Writer & Form Layout */
.writer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.editor-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(12px);
}

.editor-form-group {
  margin-bottom: 1.25rem;
}

.editor-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.editor-input, .editor-select, .editor-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.editor-input:focus, .editor-select:focus, .editor-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  background: var(--bg-secondary);
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.editor-tool-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.editor-tool-btn:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.editor-textarea-with-toolbar {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  min-height: 260px;
  resize: vertical;
}

.live-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(12px);
  position: sticky;
  top: 100px;
}

.article-formatted-content {
  line-height: 1.7;
  color: var(--text-secondary);
}

.article-formatted-content h2 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin: 1.5rem 0 0.75rem;
  font-weight: 700;
}

.article-formatted-content h3 {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin: 1.25rem 0 0.5rem;
  font-weight: 700;
}

.article-formatted-content p {
  margin-bottom: 1rem;
}

.article-formatted-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.article-formatted-content li {
  margin-bottom: 0.35rem;
}

.article-formatted-content blockquote {
  border-left: 4px solid var(--accent-blue);
  background: rgba(59,130,246,0.08);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.25rem 0;
  font-style: italic;
  color: var(--text-primary);
}

.article-formatted-content pre {
  background: #0f172a;
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.25rem 0;
}

.article-formatted-content code {
  font-family: monospace;
  color: var(--accent-cyan);
}

/* Modal Backdrop System */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  z-index: 9990;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  box-sizing: border-box;
}

.modal-backdrop.active {
  display: flex !important;
}

/* ==========================================================================
   Comprehensive Mobile & Tablet Responsive Design
   ========================================================================== */

.mobile-only-item {
  display: none;
}

/* Mobile Hamburger Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  transition: var(--transition-fast);
}

/* Prevent accidental horizontal page overflow */
html, body {
  overflow-x: hidden;
  width: 100%;
}

/* Mobile Hamburger Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.15rem;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.mobile-menu-toggle:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* Tablet & Mobile Breakpoints (max-width: 868px) */
@media (max-width: 868px) {
  .navbar {
    padding: 0.75rem 1rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    width: 100%;
    box-sizing: border-box;
  }

  .nav-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .mobile-only-item {
    display: block;
    width: 100%;
  }

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

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
  }

  .nav-actions .btn-whatsapp {
    display: none !important;
  }

  /* Fixed Mobile Drawer Overlay - 100% viewport width, zero overflow */
  .nav-menu {
    display: none;
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    width: 100vw;
    max-width: 100vw;
    max-height: calc(100vh - 58px);
    overflow-y: auto;
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--accent-blue);
    flex-direction: column;
    padding: 1.25rem;
    gap: 0.75rem;
    align-items: stretch;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(25px);
    z-index: 999;
    box-sizing: border-box;
  }

  .nav-menu.mobile-active {
    display: flex;
  }

  .nav-menu .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    transition: var(--transition-fast);
  }

  .nav-menu .nav-link:hover, .nav-menu .nav-link:active {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: var(--bg-glass);
  }

  .hero {
    padding: 2.5rem 1.25rem 2rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-title {
    font-size: clamp(1.8rem, 6vw, 2.6rem);
  }

  .hero-desc {
    margin: 0 auto 1.5rem;
    font-size: 1rem;
  }

  .hero-cta {
    justify-content: center;
    gap: 0.75rem;
  }

  .hero-stats {
    justify-content: center;
    gap: 1.5rem;
  }

  .guarantee-section {
    padding: 0 1.25rem;
    margin-bottom: 3rem;
  }

  .guarantee-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.25rem;
  }

  .catalog-section, .info-section {
    padding: 2rem 1.25rem 3.5rem;
  }

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

  .articles-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
  }

  .modal-card {
    max-width: 95vw;
    max-height: 92vh;
    border-radius: var(--radius-md);
  }

  .modal-header {
    padding: 1rem 1.25rem;
  }

  .modal-body {
    padding: 1.25rem;
  }

  .modal-tabs {
    padding: 0 1.25rem;
    overflow-x: auto;
  }

  .features-detail-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .admin-container {
    padding: 1.25rem;
  }

  .admin-header-banner {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .admin-grid-2, .admin-grid-3 {
    grid-template-columns: 1fr;
  }

  .admin-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

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

  .live-preview-card {
    position: static;
  }
}

/* Small Mobile Screens (max-width: 480px) */
@media (max-width: 480px) {
  .navbar {
    padding: 0.85rem 1rem;
  }

  .brand-text {
    font-size: 1.15rem;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn-primary, .hero-cta .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .hero-floating-badge {
    bottom: -15px;
    left: 10px;
    right: 10px;
    padding: 0.75rem;
  }

.hero-preview-container {
  position: relative;
  width: 100%;
  max-width: 100%;
}

.hero-image-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.5rem;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  width: 100%;
  aspect-ratio: 16 / 10;
  max-height: 280px;
}

.hero-image-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.hero-img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  display: block;
  object-fit: cover;
  object-position: top center;
}

.hero-floating-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  z-index: 10;
}