/* 
 * BizHelper AI - Modern Frontend Design System
 * Inspired by modern SaaS design patterns
 */

:root {
    /* Primary Colors */
    --primary: #5E3AEE;
    --primary-dark: #4A2BC5;
    --primary-light: #7C5CFF;
    --primary-rgb: 94, 58, 238;
    
    /* Secondary Colors */
    --secondary: #22D3EE;
    --secondary-dark: #0BA5BE;
    --secondary-light: #67E8F9;
    --secondary-rgb: 34, 211, 238;
    
    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    
    /* Neutral Palette */
    --gray-900: #0F172A;
    --gray-800: #1E293B;
    --gray-700: #334155;
    --gray-600: #475569;
    --gray-500: #64748B;
    --gray-400: #94A3B8;
    --gray-300: #CBD5E1;
    --gray-200: #E2E8F0;
    --gray-100: #F1F5F9;
    --gray-50: #F8FAFC;
    --white: #FFFFFF;
    --black: #000000;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #5E3AEE 0%, #22D3EE 100%);
    --gradient-secondary: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --gradient-light: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    --gradient-mesh: radial-gradient(at 40% 20%, hsla(251, 89%, 62%, 0.15) 0px, transparent 50%),
                      radial-gradient(at 80% 0%, hsla(189, 85%, 54%, 0.15) 0px, transparent 50%),
                      radial-gradient(at 0% 50%, hsla(251, 89%, 62%, 0.1) 0px, transparent 50%),
                      radial-gradient(at 20% 80%, hsla(290, 85%, 60%, 0.1) 0px, transparent 50%);
    --gradient-hero: linear-gradient(135deg, 
                        rgba(94, 58, 238, 0.1) 0%, 
                        rgba(34, 211, 238, 0.05) 25%, 
                        rgba(251, 146, 60, 0.05) 50%, 
                        rgba(168, 85, 247, 0.1) 75%, 
                        rgba(34, 211, 238, 0.1) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.95) 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(94, 58, 238, 0.3) 0%, transparent 70%);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Fira Code', 'Monaco', '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;
    --text-7xl: 4.5rem;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Spacing */
    --space-0: 0;
    --space-px: 1px;
    --space-0-5: 0.125rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.125rem;
    --radius-default: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-default: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --shadow-glow: 0 0 20px rgba(94, 58, 238, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-slower: 500ms ease;
    
    /* Z-Index */
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-modal: 1000;
    --z-popover: 1100;
    --z-tooltip: 1200;
    --z-notification: 1300;
}

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

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(--text-base);
    line-height: var(--leading-normal);
    color: var(--gray-700);
    background: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--leading-tight);
    color: var(--gray-900);
}

h1 { font-size: clamp(2rem, 5vw, var(--text-6xl)); }
h2 { font-size: clamp(1.75rem, 4vw, var(--text-5xl)); }
h3 { font-size: clamp(1.5rem, 3vw, var(--text-4xl)); }
h4 { font-size: clamp(1.25rem, 2.5vw, var(--text-3xl)); }
h5 { font-size: clamp(1.125rem, 2vw, var(--text-2xl)); }
h6 { font-size: clamp(1rem, 1.5vw, var(--text-xl)); }

p {
    margin-bottom: var(--space-4);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-sm { max-width: 640px; }
.container-md { max-width: 768px; }
.container-lg { max-width: 1024px; }
.container-xl { max-width: 1280px; }
.container-2xl { max-width: 1536px; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--space-3) 0;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar.scrolled {
    padding: var(--space-3) 0;
    border-bottom-color: var(--gray-100);
    box-shadow: var(--shadow-lg);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--gray-900);
    text-decoration: none;
}

.navbar-logo {
    height: 45px !important;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: all 0.3s ease;
    display: block;
}

.navbar-brand:hover .navbar-logo {
    transform: scale(1.05);
}

.navbar-brand .text-glow {
    font-size: var(--text-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
}

.navbar-link {
    color: var(--gray-600);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-base);
}

.navbar-link:hover {
    color: var(--primary);
}

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

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

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 4px 14px 0 rgba(var(--primary-rgb), 0.25);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(var(--primary-rgb), 0.35);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-2px);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--gray-700);
    border-color: transparent;
}

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

.btn-gradient {
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 14px 0 rgba(var(--primary-rgb), 0.25);
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(var(--primary-rgb), 0.35);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-xl {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-xl);
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

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

.card-featured {
    border-color: var(--primary);
    position: relative;
    transform: scale(1.05);
}

.card-featured::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.1;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.badge-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

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

/* Hero Section */
.hero {
    padding: calc(80px + var(--space-24)) 0 var(--space-24);
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-6);
    animation: slideDown 0.6s ease;
}

.hero-title {
    margin-bottom: var(--space-6);
    animation: slideUp 0.8s ease;
}

.hero-description {
    font-size: var(--text-xl);
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    animation: slideUp 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    margin-bottom: var(--space-8);
    animation: slideUp 0.8s ease 0.4s both;
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: var(--space-24);
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #0EA5E9 0%, #3B82F6 50%, #6366F1 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    opacity: 0.3;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
}

.hero-content {
    max-width: 650px;
    margin-bottom: var(--space-12);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: var(--space-6);
}

.hero-description {
    font-size: var(--text-xl);
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
}

.stat-item {
    text-align: left;
}

.stat-number-enhanced {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: float 6s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 20px;
    right: 100px;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 150px;
    right: 20px;
    animation-delay: 2s;
}

.floating-card.card-3 {
    top: 280px;
    right: 120px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Page Hero - For inner pages */
.page-hero {
    padding-top: 140px;
    padding-bottom: var(--space-16);
    background: linear-gradient(135deg, #0EA5E9 0%, #3B82F6 50%, #6366F1 100%);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    opacity: 0.2;
}

.page-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.page-hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.page-hero-description {
    font-size: var(--text-lg);
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: 0 auto;
}

/* Section */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.section-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.section-description {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.6;
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-6);
}

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

/* Features */
.feature-card {
    text-align: center;
    padding: var(--space-8);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-3xl);
    color: var(--white);
}

.feature-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

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

/* Pricing */
.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.toggle-switch {
    position: relative;
    width: 60px;
    height: 32px;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background var(--transition-base);
}

.toggle-switch.active {
    background: var(--primary);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 24px;
    height: 24px;
    background: var(--white);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.toggle-switch.active::after {
    transform: translateX(28px);
}

.pricing-card {
    text-align: center;
    position: relative;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-2);
    margin: var(--space-6) 0;
}

.price-currency {
    font-size: var(--text-xl);
    color: var(--gray-600);
}

.price-amount {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--gray-900);
}

.price-period {
    color: var(--gray-600);
}

.pricing-features {
    list-style: none;
    margin: var(--space-8) 0;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    color: var(--gray-700);
}

.pricing-features i {
    color: var(--success);
    flex-shrink: 0;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: var(--space-4);
}

.footer-links h4 {
    color: var(--white);
    font-size: var(--text-base);
    margin-bottom: var(--space-4);
}

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

.footer-links li {
    margin-bottom: var(--space-2);
}

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

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

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

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

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 768px) {
    .navbar-menu { display: none; }
    .navbar-actions .btn-ghost { display: none; }

    .navbar-logo {
        height: 50px !important;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .pricing-card.card-featured {
        transform: none;
    }
}

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

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

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

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.bg-white { background: var(--white); }
.bg-gray-50 { background: var(--gray-50); }
.bg-gray-100 { background: var(--gray-100); }
.bg-primary { background: var(--primary); }
.bg-gradient { background: var(--gradient-primary); }

.text-white { color: var(--white); }
.text-primary { color: var(--primary); }
.text-gray-600 { color: var(--gray-600); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-900 { color: var(--gray-900); }

.rounded { border-radius: var(--radius-default); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-default); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-2xl { box-shadow: var(--shadow-2xl); }

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: var(--text-2xl);
    color: var(--gray-700);
    cursor: pointer;
}

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

.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    padding: var(--space-4);
    z-index: var(--z-modal);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-list {
    list-style: none;
}

.mobile-menu-item {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-100);
}

.mobile-menu-link {
    color: var(--gray-700);
    font-weight: 500;
    display: block;
}

/* ============================================
   ENHANCED VISUAL ELEMENTS
   ============================================ */

/* Animated Background Elements */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-mesh);
    animation: mesh-flow 20s ease-in-out infinite;
    opacity: 0.8;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: var(--gradient-glow);
    border-radius: 50%;
    animation: pulse-glow 8s ease-in-out infinite;
    filter: blur(60px);
}

/* Floating Geometric Shapes */
.hero-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: float-shapes 15s ease-in-out infinite;
}

.shape-1 {
    top: 20%;
    left: 10%;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    transform: rotate(45deg);
    animation-delay: 0s;
}

.shape-2 {
    top: 60%;
    right: 15%;
    width: 60px;
    height: 60px;
    background: var(--secondary);
    border-radius: 50%;
    animation-delay: 3s;
}

.shape-3 {
    bottom: 30%;
    left: 20%;
    width: 100px;
    height: 100px;
    background: linear-gradient(45deg, transparent 40%, var(--primary) 40%, var(--primary) 60%, transparent 60%);
    transform: rotate(30deg);
    animation-delay: 6s;
}

/* Enhanced Cards with Glassmorphism */
.card-enhanced {
    background: var(--gradient-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.card-enhanced:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.15),
        0 8px 16px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Glowing Text Effect */
.text-glow {
    text-shadow: 
        0 0 10px rgba(94, 58, 238, 0.3),
        0 0 20px rgba(94, 58, 238, 0.2),
        0 0 30px rgba(94, 58, 238, 0.1);
}

/* Enhanced Buttons with Micro-interactions */
.btn-enhanced {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 4px 16px rgba(94, 58, 238, 0.3),
        0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn-enhanced:hover::before {
    left: 100%;
}

.btn-enhanced:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow:
        0 8px 24px rgba(94, 58, 238, 0.4),
        0 4px 8px rgba(0, 0, 0, 0.15);
    color: inherit;
}

.btn-primary.btn-enhanced:hover {
    color: var(--white) !important;
}

.btn-enhanced:active {
    transform: translateY(0) scale(0.98);
}

/* Animated Icons */
.icon-animated {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.icon-animated::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--gradient-glow);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
    z-index: -1;
}

.icon-animated:hover {
    transform: scale(1.2) rotate(5deg);
    color: var(--primary);
}

.icon-animated:hover::after {
    width: 120%;
    height: 120%;
    opacity: 0.2;
}

/* Parallax Scroll Effects */
.parallax-slow {
    transform: translateZ(0);
    will-change: transform;
}

/* Enhanced Testimonial Cards */
.testimonial-enhanced {
    position: relative;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
}

.testimonial-enhanced::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.1;
    font-family: serif;
}

.testimonial-enhanced:hover {
    transform: translateY(-6px);
    box-shadow: 
        0 16px 48px rgba(0, 0, 0, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Interactive Feature Grid */
.feature-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
    perspective: 1000px;
}

.feature-item-enhanced {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.feature-item-enhanced::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.feature-item-enhanced:hover {
    transform: rotateX(5deg) rotateY(5deg) translateZ(20px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.15),
        0 8px 16px rgba(0, 0, 0, 0.1);
}

.feature-item-enhanced:hover::after {
    opacity: 0.05;
}

.feature-icon-enhanced {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #3B82F6 0%, #6366F1 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.25);
}

.feature-icon-enhanced::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item-enhanced:hover .feature-icon-enhanced {
    transform: scale(1.1) rotate(5deg);
}

.feature-item-enhanced:hover .feature-icon-enhanced::before {
    opacity: 1;
    animation: icon-pulse 2s ease-in-out infinite;
}

.feature-item-enhanced h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    margin-top: 0;
}

.feature-item-enhanced p {
    color: #475569;
    line-height: 1.6;
    margin-bottom: 0;
    font-size: 0.95rem;
}

.feature-title-enhanced {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
}

.feature-description-enhanced {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    padding: var(--space-2) 0;
}

.feature-list li i {
    color: var(--primary);
    font-size: var(--text-sm);
}

/* Stats Counter Animation */
.stat-number-enhanced {
    font-size: var(--text-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.stat-number-enhanced::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    animation: stat-line 2s ease-out 1s forwards;
}

/* Advanced Animations */
@keyframes mesh-flow {
    0%, 100% { 
        transform: translate(0, 0) rotate(0deg); 
        opacity: 0.6;
    }
    25% { 
        transform: translate(2%, -2%) rotate(1deg); 
        opacity: 0.8;
    }
    50% { 
        transform: translate(-1%, 1%) rotate(-1deg); 
        opacity: 0.7;
    }
    75% { 
        transform: translate(1%, -1%) rotate(0.5deg); 
        opacity: 0.9;
    }
}

@keyframes pulse-glow {
    0%, 100% { 
        transform: scale(1) translate(0, 0);
        opacity: 0.3;
    }
    50% { 
        transform: scale(1.2) translate(20px, -10px);
        opacity: 0.6;
    }
}

@keyframes float-shapes {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    25% { 
        transform: translateY(-20px) rotate(5deg); 
    }
    50% { 
        transform: translateY(-40px) rotate(-5deg); 
    }
    75% { 
        transform: translateY(-20px) rotate(3deg); 
    }
}

@keyframes icon-pulse {
    0%, 100% { 
        transform: scale(1); 
    }
    50% { 
        transform: scale(1.05); 
    }
}

@keyframes stat-line {
    0% { 
        transform: scaleX(0); 
    }
    100% { 
        transform: scaleX(1); 
    }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll-triggered animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Enhanced CTA Section */
.cta-enhanced {
    position: relative;
    background: var(--gradient-primary);
    border-radius: var(--radius-3xl);
    padding: var(--space-20);
    text-align: center;
    color: white;
    overflow: hidden;
}

.cta-enhanced::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: cta-shimmer 8s linear infinite;
}

.cta-enhanced::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: cta-sweep 3s ease-in-out infinite;
}

@keyframes cta-shimmer {
    0% { 
        transform: rotate(0deg); 
    }
    100% { 
        transform: rotate(360deg); 
    }
}

@keyframes cta-sweep {
    0%, 100% { 
        transform: translateX(-100%); 
    }
    50% { 
        transform: translateX(100%); 
    }
}

/* Interactive Navigation */
.navbar-enhanced {
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar-enhanced.scrolled {
    backdrop-filter: blur(30px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar-link-enhanced {
    position: relative;
    transition: all 0.3s ease;
}

.navbar-link-enhanced::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-link-enhanced:hover::after,
.navbar-link-enhanced.active::after {
    width: 100%;
}

/* Responsive Enhancements */
@media (max-width: 768px) {
    .hero-shapes {
        display: none;
    }
    
    .feature-grid-enhanced {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .feature-item-enhanced:hover {
        transform: translateY(-4px);
    }
    
    .cta-enhanced {
        padding: var(--space-12);
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.9) 0%, rgba(51, 65, 85, 0.95) 100%);
    }
    
    .card-enhanced,
    .feature-item-enhanced,
    .testimonial-enhanced {
        background: var(--gradient-card);
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* High performance mode for reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}