/* Custom CSS Variables - Design System */
:root {
    /* Primary Color Palette - Choose bold, distinctive colors */
    --primary-50: #f0f9ff;
    --primary-500: #0ea5e9; 
    --primary-600: #0284c7;
    --primary-900: #0c4a6e;
    
    /* Accent Colors */
    --accent-400: #fb7185;
    --accent-500: #f43f5e;
    
    /* Typography */
    --font-display: 'Space Grotesk', 'Outfit', sans-serif;
    --font-body: 'Inter', 'Poppins', sans-serif;
    
    /* Shadows */
    --shadow-soft: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-medium: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-large: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* Import distinctive fonts */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-600);
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    transition: top 0.3s;
    z-index: 100;
}

.skip-link:focus {
    top: 6px;
}

/* Navigation Enhancements */
.nav-container {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
}

.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-600);
    transition: width 0.3s ease;
}

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

/* Button Animations */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    box-shadow: var(--shadow-large);
}

.btn-secondary {
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-600);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-secondary:hover::before {
    left: 0;
}

/* Hero Section Enhancements */
.hero-section {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.03) 0%, 
        rgba(251, 113, 133, 0.03) 50%,
        rgba(139, 92, 246, 0.03) 100%
    );
}

.hero-content h1 {
    background: linear-gradient(135deg, var(--primary-900), var(--accent-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-content p {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-content .flex {
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* Feature Cards */
.feature-card {
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

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

/* Portfolio Items */
.portfolio-item {
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-8px);
}

.portfolio-item:hover .aspect-video {
    box-shadow: var(--shadow-large);
}

/* Contact Form */
.contact-form input,
.contact-form textarea {
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Mobile Menu */
.mobile-menu {
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

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

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

/* Smooth transitions for all interactive elements */
a, button, input, textarea, .feature-card, .portfolio-item {
    transition: all 0.3s ease;
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .nav-container,
    .mobile-menu-btn,
    .btn-primary,
    .btn-secondary {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed */
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}