/* ==============================================
   SahajViews - Design System
   Professional UI/UX Framework
   ============================================== */

/* Color Palette */
:root {
  /* Primary Colors */
  --primary-navy: #0A2540;
  --primary-blue: #1E3A8A;
  --secondary-gold: #C5A85A;
  --accent-gold: #D4AF37;

  /* Neutral Colors */
  --white: #FFFFFF;
  --off-white: #F8FAFC;
  --light-gray: #F1F5F9;
  --medium-gray: #64748B;
  --dark-gray: #1E293B;
  --black: #0F172A;

  /* Status Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0A2540 0%, #1E3A8A 100%);
  --gradient-gold: linear-gradient(135deg, #C5A85A 0%, #D4AF37 100%);
  --gradient-light: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Max Width */
  --max-width-sm: 640px;
  --max-width-md: 768px;
  --max-width-lg: 1024px;
  --max-width-xl: 1280px;
  --max-width-2xl: 1536px;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--dark-gray);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
  color: var(--medium-gray);
  font-size: 1.0625rem;
  line-height: 1.75;
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: all var(--transition-base);
}

a:hover {
  color: var(--secondary-gold);
}

/* Container & Layout */
.container {
  width: 100%;
  max-width: var(--max-width-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-sm {
  padding: var(--spacing-2xl) 0;
}

.section-lg {
  padding: 5rem 0;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--spacing-lg);
  max-width: var(--max-width-2xl);
  margin: 0 auto;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-navy);
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  transition: all var(--transition-base);
}

.navbar-logo:hover {
  opacity: 0.85;
}

.navbar-logo img {
  height: 3.5rem;
  width: auto;
  object-fit: contain;
  transition: opacity var(--transition-base);
  display: block;
}

.navbar-logo:hover img {
  transform: scale(1.02);
}

.navbar-logo span {
  display: none;
}

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

.navbar-menu a {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--dark-gray);
  transition: all var(--transition-base);
  position: relative;
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-gold);
  transition: width var(--transition-base);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
  width: 100%;
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--primary-blue);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--primary-navy);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-family: var(--font-primary);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--primary-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.btn-secondary {
  background: var(--gradient-gold);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-outline:hover {
  background: var(--primary-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--white);
  color: var(--primary-navy);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary-navy);
}

.btn-success {
  background: var(--success);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-success:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

.card-text {
  color: var(--medium-gray);
  margin-bottom: var(--spacing-md);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* Horizontal Scroll Container */
.horizontal-scroll {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--spacing-sm);
  cursor: grab;
}

.horizontal-scroll:active {
  cursor: grabbing;
}

.horizontal-scroll::-webkit-scrollbar {
  height: 8px;
}

.horizontal-scroll::-webkit-scrollbar-track {
  background: var(--light-gray);
  border-radius: var(--radius-full);
}

.horizontal-scroll::-webkit-scrollbar-thumb {
  background: var(--medium-gray);
  border-radius: var(--radius-full);
}

.horizontal-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--dark-gray);
}

.horizontal-scroll {
  margin-left: calc(-1 * var(--spacing-lg));
  margin-right: calc(-1 * var(--spacing-lg));
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.horizontal-scroll .card {
  flex: 0 0 360px;
  min-width: 360px;
  max-width: 360px;
}

/* Hero Section */
.hero {
  padding-top: calc(80px + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  background: var(--gradient-light);
  text-align: center;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--medium-gray);
  margin-bottom: var(--spacing-xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

/* Feature Cards */
.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: inline-block;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

.feature-text {
  color: var(--medium-gray);
  font-size: 1rem;
}

/* Section Backgrounds */
.bg-light {
  background: var(--light-gray);
}

.bg-gradient {
  background: var(--gradient-primary);
  color: var(--white);
}

.bg-gradient h2,
.bg-gradient h3,
.bg-gradient h4 {
  color: var(--white);
}

.bg-gradient p {
  color: rgba(255, 255, 255, 0.9);
}

/* Footer */
.footer {
  background: linear-gradient(180deg, #0F172A 0%, #020617 100%);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-logo-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--spacing-sm);
}

.footer-logo img {
  height: 4rem;
  width: auto;
  object-fit: contain;
}

.footer-logo span {
  display: none;
}

.footer-section h4 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-base);
  font-size: 0.9375rem;
  display: inline-block;
}

.footer-section a:hover {
  color: var(--secondary-gold);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--gradient-gold);
  transform: translateY(-3px);
  padding-left: 0;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--dark-gray);
}

.form-control {
  width: 100%;
  padding: 0.875rem 1.25rem;
  border: 2px solid var(--light-gray);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-family: var(--font-primary);
  transition: all var(--transition-base);
  background: var(--white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

/* Detail Enhancements */
.detail-list {
  list-style: none;
  padding: 0;
}

.detail-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.875rem;
  color: var(--medium-gray);
  line-height: 1.6;
}

.detail-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
  font-size: 1.125rem;
}

.badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--light-gray);
  color: var(--dark-gray);
}

.badge-primary {
  background: var(--primary-blue);
  color: var(--white);
}

.badge-gold {
  background: var(--gradient-gold);
  color: var(--white);
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--medium-gray) 50%, transparent 100%);
  margin: var(--spacing-xl) 0;
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-6 { grid-template-columns: repeat(3, 1fr); }

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

  .footer-logo-section {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    gap: var(--spacing-md);
  }

  .navbar-menu.active {
    display: flex;
  }

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

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4,
  .grid-cols-6 {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

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

  .footer-logo-section {
    grid-column: span 1;
    text-align: center;
  }

  .footer-logo {
    justify-content: center;
  }

  .footer-social {
    justify-content: center;
  }

  .footer-section h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 640px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .navbar-logo img {
    height: 3rem;
    width: auto;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Loading State */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--secondary-gold);
  outline-offset: 2px;
}