/* Alnaseer Solar Design System & Core Styles */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Color Palettes */
  --bg-dark: #070f2b;
  --bg-dark-secondary: #0d123a;
  --bg-dark-card: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.18);
  
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.2);
  --accent-green-hover: #059669;
  
  --white: #ffffff;
  --white-soft: #f8fafc;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Light mode equivalents if needed (the user specifies White, Dark Blue, Green Accent) */
  --light-bg: #f8fafc;
  --light-card: #ffffff;
  --light-border: #e2e8f0;
  --light-text-primary: #0f172a;
  --light-text-secondary: #475569;

  /* Typography */
  --font-primary: 'Outfit', sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  
  /* System Values */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px 0 var(--accent-green-glow);
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-primary);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Typography Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

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

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-dark-secondary);
  border: 2px solid var(--bg-dark);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: clamp(4rem, 8vw, 8rem) 0;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid-responsive {
  display: grid;
  gap: 2rem;
}

/* Premium Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 1.85rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent-green);
  color: #070f2b;
}

.btn-primary:hover {
  background-color: var(--accent-green-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--white);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #ffffff;
}

.btn-whatsapp:hover {
  background-color: #128c7e;
  box-shadow: 0 0 20px rgba(37, 211, 102, 0.3);
  transform: translateY(-2px);
}

/* Glassmorphism Card Style */
.glass-card {
  background: var(--bg-dark-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(16, 185, 129, 0.05);
}

.glass-nav {
  background: rgba(7, 15, 43, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
}

/* Accent highlight */
.text-accent {
  color: var(--accent-green);
}

/* Badges */
.badge {
  display: inline-flex;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.animate-fade {
  animation: fadeIn 1s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Responsive grid limits */
.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* Responsive adjustments */
@media (max-width: 768px) {
  body {
    font-size: 15px;
  }
  .section-padding {
    padding: 3rem 0;
  }
}

/* ---------------------------------------------------- */
/* PHASE 3 ENHANCEMENTS: MOBILE NAV, SHOP & DETAIL MODAL */
/* ---------------------------------------------------- */

/* Mobile Hamburger Toggle */
.mobile-menu-btn {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* Mobile Slide-Out Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100vh;
  background: rgba(7, 15, 43, 0.95);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-left: 1px solid var(--border-glass);
  z-index: 2500;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2400;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-drawer-backdrop.active {
  display: block;
  opacity: 1;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.mobile-nav-links a {
  font-size: 1.05rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  color: var(--accent-green);
}

@media (max-width: 992px) {
  .nav-links, .nav-cta .btn-secondary {
    display: none !important;
  }
  .mobile-menu-btn {
    display: flex;
  }
}

/* Price Per Watt Badges */
.price-per-watt-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
  padding: 0.3rem 0.65rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* Technology Tier Badges */
.tech-pill {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tech-n-type {
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #60a5fa;
}

.tech-hpbc {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.tech-p-type {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

/* Product Card Improvements */
.product-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition-smooth);
}

.product-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25), 0 0 25px rgba(16, 185, 129, 0.06);
}

.product-card-img-wrap {
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
  position: relative;
  padding: 0.5rem;
}

.product-card-img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.product-card:hover .product-card-img {
  transform: scale(1.05);
}

.product-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

/* Wattage Filter Quick Pills */
.wattage-filter-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.watt-pill-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.watt-pill-btn:hover,
.watt-pill-btn.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* Product Detail & Policy Modals */
.detail-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 15, 43, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.detail-modal-box {
  width: 100%;
  max-width: 780px;
  max-height: 90vh;
  overflow-y: auto;
  background: #0b1437;
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.88rem;
}

.spec-table td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-glass);
}

.spec-table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.015);
}

.spec-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  width: 40%;
}

.spec-table td:last-child {
  color: var(--text-secondary);
}

/* Product Detail SEO & FAQs Section */
.product-seo-content {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.product-overview-text {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.product-key-specs-section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.specs-heading, .faqs-heading {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.specs-bullet-list {
  list-style: disc;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.specs-bullet-list li strong {
  color: var(--accent-green);
}

.product-faqs-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.product-faq-item {
  background: rgba(16, 185, 129, 0.04);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.85rem 1rem;
}

.faq-q {
  font-weight: 700;
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.faq-a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* Services and Feature Cards */
.service-feature-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-feature-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 20px rgba(16, 185, 129, 0.08);
}

.service-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

/* Spin animation utility */
.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}