/**
 * Identity Converse Website Styles
 * Main stylesheet with modern, professional design
 */

/* ========================================
   IMPORTS & VARIABLES
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Brand Colors - Professional Corporate Palette */
  --color-primary: #0066cc;
  --color-primary-dark: #004c99;
  --color-primary-light: #3385d6;
  --color-secondary: #5856d6;
  --color-secondary-dark: #4240b8;
  --color-accent: #00b8d4;
  
  /* Neutral Colors */
  --color-dark: #1e293b;
  --color-gray-900: #0f172a;
  --color-gray-800: #1e293b;
  --color-gray-700: #334155;
  --color-gray-600: #475569;
  --color-gray-500: #64748b;
  --color-gray-400: #94a3b8;
  --color-gray-300: #cbd5e1;
  --color-gray-200: #e2e8f0;
  --color-gray-100: #f1f5f9;
  --color-gray-50: #f8fafc;
  --color-white: #ffffff;
  
  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* 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);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-tooltip: 1060;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

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

a:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   LAYOUT & CONTAINERS
   ======================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.container-narrow {
  max-width: 960px;
}

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

.section-lg {
  padding: 6rem 0;
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

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

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-gray-900);
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.navbar-menu a {
  font-weight: 500;
  color: var(--color-gray-700);
  transition: color var(--transition-base);
}

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

.navbar-menu a.btn {
  color: var(--color-white);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.navbar-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-gray-900);
  margin: 5px 0;
  transition: all var(--transition-base);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-gray-700);
  border: 2px solid var(--color-gray-300);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0a1929 0%, #1a2332 50%, #0a1929 100%);
  color: var(--color-white);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(88, 86, 214, 0.1) 0%, transparent 50%);
  opacity: 1;
}

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

.hero-content {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
  line-height: 1.1;
}

.hero .subheadline {
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.95);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   CARDS
   ======================================== */

.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  /* Icon styling moved to icons.css */
  margin-bottom: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-900);
  line-height: 1.3;
}

.card-description {
  color: var(--color-gray-600);
  line-height: 1.7;
  font-size: var(--font-size-base);
}

/* ========================================
   GRID LAYOUTS
   ======================================== */

.grid {
  display: grid;
  gap: var(--spacing-xl);
}

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

/* ========================================
   SECTION HEADERS
   ======================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-900);
}

.section-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-gray-600);
  max-width: 700px;
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   QUERY EXAMPLES
   ======================================== */

.query-examples {
  background: var(--color-gray-50);
}

.query-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.query-card:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.query-card .icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.query-card .text {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-xs);
}

.query-card .category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* ========================================
   VIDEO SECTION
   ======================================== */

.video-section {
  background: var(--color-gray-900);
  color: var(--color-white);
}

.video-section .section-title,
.video-section .section-subtitle {
  color: var(--color-white);
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
}

.video-wrapper iframe,
.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ========================================
   STATS SECTION
   ======================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.stat-value {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-xs);
}

.stat-description {
  color: var(--color-gray-600);
}

/* ========================================
   COMPARISON SECTION
   ======================================== */

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

.comparison-card {
  padding: var(--spacing-xl);
  border-radius: var(--radius-2xl);
}

.comparison-card.before {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.comparison-card.after {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
}

.comparison-card h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
}

.comparison-card ul {
  list-style: none;
}

.comparison-card li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-xl);
  position: relative;
}

.comparison-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  font-size: 1.5rem;
  font-weight: bold;
}

.comparison-card.before li::before {
  color: #f59e0b;
}

.comparison-card.after li::before {
  color: #10b981;
}

/* ========================================
   PRODUCTS PAGE
   ======================================== */

.product-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-2xl);
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.product-logo {
  width: 100%;
  max-width: 200px;
  height: 100px;
  object-fit: contain;
  margin-bottom: var(--spacing-lg);
}

.product-name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.product-description {
  color: var(--color-gray-600);
  line-height: 1.6;
}

.product-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  margin-top: var(--spacing-md);
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.coming-soon-section {
  background: var(--color-gray-50);
  padding: var(--spacing-3xl) 0;
  margin-top: var(--spacing-3xl);
}

/* ========================================
   FORMS
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  color: var(--color-gray-900);
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-help {
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.multiselect-wrapper {
  position: relative;
}

.multiselect-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  min-height: 48px;
}

.multiselect-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.25rem 0.75rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
}

.multiselect-tag button {
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: 0;
  font-size: 1.2rem;
  line-height: 1;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 400px;
}

.footer-brand h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: var(--color-gray-400);
  margin-bottom: var(--spacing-lg);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--color-gray-800);
  color: var(--color-white);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.footer-links h4 {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

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

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

.footer-links a {
  color: var(--color-gray-400);
  transition: color var(--transition-base);
}

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

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

/* ========================================
   UTILITIES
   ======================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Animation classes - DISABLED for stability */
/* 
.hidden-before-animation {
  opacity: 0;
}

.fade-in {
  animation: fadeIn 0.6s ease-in forwards !important;
  opacity: 1 !important;
}

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

.slide-up {
  animation: slideUp 0.6s ease-out forwards;
  opacity: 1 !important;
}

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