/*
Theme Name: OrderNimbus
Description: Enterprise AI-Powered Sales Forecasting Platform Theme
Version: 2.0
Author: OrderNimbus
*/

/* ===================================
   CSS VARIABLES & DESIGN TOKENS
   =================================== */
:root {
    /* Primary Brand Colors - Gradient */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-primary-hover: linear-gradient(135deg, #5a67d8 0%, #68409c 100%);
    
    /* Primary Color Palette */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Dark Theme Colors */
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --dark-border: #334155;
    --dark-text: #e2e8f0;
    --dark-text-secondary: #94a3b8;
    
    /* Semantic Colors */
    --success-light: #f0fdf4;
    --success: #16a34a;
    --success-dark: #15803d;
    
    --warning-light: #fffbeb;
    --warning: #d97706;
    --warning-dark: #b45309;
    
    --error-light: #fef2f2;
    --error: #dc2626;
    --error-dark: #b91c1c;
    
    --info-light: #f0f9ff;
    --info: #0284c7;
    --info-dark: #0369a1;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Courier New', monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
*, *::before, *::after {
    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-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    min-height: 100vh;
}

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

h1 {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 700;
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(var(--text-xl), 3vw, var(--text-3xl));
    font-weight: 600;
}

h4 {
    font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
    font-weight: 600;
}

h5 {
    font-size: var(--text-xl);
    font-weight: 600;
}

h6 {
    font-size: var(--text-lg);
    font-weight: 600;
}

p {
    margin-bottom: var(--space-md);
    color: var(--gray-600);
    line-height: 1.7;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-700);
}

strong {
    font-weight: 600;
    color: var(--gray-900);
}

/* ===================================
   LAYOUT CONTAINERS
   =================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (max-width: 640px) {
    .container {
        padding: 0 var(--space-md);
    }
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    min-height: 72px;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: transform var(--transition-base);
}

.logo-icon {
    width: 40px;
    height: 40px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: all var(--transition-base);
}

.logo-text {
    font-size: var(--text-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo:hover {
    transform: translateX(2px);
}

.logo:hover .logo-icon {
    transform: scale(1.05) rotate(5deg);
    filter: drop-shadow(0 4px 8px rgba(102, 126, 234, 0.3));
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.main-nav a {
    color: var(--gray-700);
    font-weight: 500;
    font-size: var(--text-base);
    position: relative;
    transition: color var(--transition-base);
    padding: var(--space-xs) 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.main-nav a:hover {
    color: var(--primary-600);
}

.main-nav a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    color: white;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--primary-600);
    border-color: var(--primary-200);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    background: var(--primary-50);
    border-color: var(--primary-400);
    color: var(--primary-700);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-700);
    padding: var(--space-sm) var(--space-md);
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-sm);
}

/* Button with icon */
.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon svg {
    transform: translateX(2px);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    background: var(--gradient-primary);
    position: relative;
    padding: calc(var(--space-4xl) + 72px) 0 var(--space-4xl);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease-out;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--space-2xl);
    line-height: 1.6;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero .btn-primary {
    background: white;
    color: var(--primary-600);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.hero .btn-primary:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.hero .btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.hero .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ===================================
   FEATURES SECTION
   =================================== */
.features {
    padding: var(--space-4xl) 0;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-subtitle {
    color: var(--primary-600);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-lg);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card:hover {
    border-color: var(--primary-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    font-size: var(--text-2xl);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.3);
}

.feature-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===================================
   STATS SECTION
   =================================== */
.stats {
    padding: var(--space-4xl) 0;
    background: var(--dark-surface);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    text-align: center;
    position: relative;
}

.stat-item {
    animation: fadeInUp 0.6s ease-out;
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: var(--text-lg);
    color: var(--dark-text-secondary);
    font-weight: 500;
}

/* ===================================
   PRICING SECTION
   =================================== */
.pricing {
    padding: var(--space-4xl) 0;
    background: var(--gray-50);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
}

.pricing-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--primary-400);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.pricing-header h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-sm);
}

.pricing-header p {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
    margin: var(--space-lg) 0;
}

.price-currency {
    font-size: var(--text-xl);
    color: var(--gray-500);
    font-weight: 500;
}

.price-amount {
    font-size: var(--text-5xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: var(--text-base);
    color: var(--gray-500);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin: var(--space-xl) 0;
}

.pricing-features li {
    padding: var(--space-sm) 0;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.pricing-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

/* ===================================
   CTA SECTION
   =================================== */
.cta {
    background: var(--gradient-primary);
    padding: var(--space-4xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    color: white;
    margin-bottom: var(--space-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.95);
    font-size: var(--text-xl);
    margin-bottom: var(--space-xl);
}

.cta .btn-primary {
    background: white;
    color: var(--primary-600);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.cta .btn-primary:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ===================================
   FOOTER
   =================================== */
.site-footer {
    background: var(--dark-bg);
    color: var(--dark-text);
    padding: var(--space-3xl) 0 var(--space-xl);
}

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

.footer-brand h4 {
    font-size: var(--text-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    color: var(--dark-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.footer-section h5 {
    color: var(--dark-text);
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

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

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

.footer-section a {
    color: var(--dark-text-secondary);
    transition: color var(--transition-base);
    font-size: var(--text-sm);
}

.footer-section a:hover {
    color: var(--primary-400);
}

.footer-bottom {
    border-top: 1px solid var(--dark-border);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright {
    color: var(--dark-text-secondary);
    font-size: var(--text-sm);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--dark-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-text-secondary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-2px);
}

/* ===================================
   FLOATING CTA
   =================================== */
.floating-cta {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-sticky);
    opacity: 0;
    transform: translateY(100px);
    transition: all var(--transition-base);
    pointer-events: none;
}

.floating-cta.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.floating-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.floating-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
    color: white;
}

.floating-btn-icon {
    font-size: var(--text-xl);
    transition: transform var(--transition-base);
}

.floating-btn:hover .floating-btn-icon {
    transform: translateX(3px);
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.5;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ===================================
   FORMS
   =================================== */
.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all var(--transition-base);
    background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

.form-checkbox {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: white;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-base);
}

.form-checkbox:checked {
    background: var(--gradient-primary);
    border-color: transparent;
}

.form-checkbox:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

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

.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 30px;
        height: 30px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
    }
    
    .mobile-menu-toggle span {
        width: 25px;
        height: 3px;
        background: var(--gray-700);
        border-radius: var(--radius-sm);
        transition: all var(--transition-base);
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .main-nav.mobile-active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: var(--space-md) 0;
    }
    
    .main-nav li {
        width: 100%;
    }
    
    .main-nav a {
        display: block;
        padding: var(--space-md) var(--space-lg);
        border-bottom: 1px solid var(--gray-100);
    }
    
    .main-nav a::after {
        display: none;
    }
    
    /* Mobile Typography */
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }
    
    /* Mobile Hero */
    .hero {
        padding: calc(var(--space-3xl) + 72px) 0 var(--space-3xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Mobile Grid Layouts */
    .features-grid,
    .pricing-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    /* Mobile Floating CTA */
    .floating-cta {
        bottom: var(--space-lg);
        right: var(--space-lg);
    }
    
    .floating-btn {
        width: 56px;
        height: 56px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
    }
    
    .floating-btn-text {
        display: none;
    }
    
    .floating-btn-icon {
        margin: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .header-actions .btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--text-sm);
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.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 visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-600);
    color: white;
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    border-radius: var(--radius-md);
    z-index: var(--z-tooltip);
}

.skip-to-content:focus {
    top: var(--space-sm);
}

/* ===================================
   ADDITIONAL COMPONENTS
   =================================== */

/* Badges */
.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-badges {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.footer-badges .badge {
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    color: var(--primary-400);
}

/* Footer Links Styling */
.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--dark-text-secondary);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-400);
}

/* Content Section Enhancements */
.content-section {
    padding: var(--space-4xl) 0;
}

.content-section:nth-child(even) {
    background: var(--gray-50);
}

/* Row and Column Layout */
.row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.col {
    flex: 1;
}

.col-half {
    flex: 0 0 calc(50% - var(--space-xl)/2);
}

.col-third {
    flex: 0 0 calc(33.333% - var(--space-xl)*2/3);
}

@media (max-width: 768px) {
    .col-half,
    .col-third {
        flex: 0 0 100%;
    }
}

/* Mobile Menu Enhancement */
.mobile-menu-toggle {
    display: none;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
}

/* Header Scroll Effect */
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

/* Add smooth scroll for header */
.site-header {
    transition: all var(--transition-base);
}

/* Footer Logo Styles */
.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.footer-logo h4 {
    margin: 0;
}