/* Dark Mode Only Styles */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-bg: #111827;
    --dark-surface: #1f2937;
    --dark-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --text-tertiary: #9ca3af;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Loading Animation */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

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

/* Animation Classes */
.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-gradient);
}

/* Selection Color */
::selection {
    background: rgba(59, 130, 246, 0.5);
    color: white;
}

/* Focus Styles */
:focus {
    outline: 2px solid rgba(59, 130, 246, 0.5);
    outline-offset: 2px;
}

/* Glass Morphism */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-dark {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out forwards;
}

/* Button Styles */
.btn-gradient {
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* Card Hover Effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Navigation Styles */
.nav-scrolled {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Section Spacing */
section {
    position: relative;
    overflow: hidden;
}

/* Particle Background */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* Form Styles */
.form-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Responsive Typography */
@media (max-width: 640px) {
    h1 {
        font-size: 2.5rem !important;
    }
    
    h2 {
        font-size: 2rem !important;
    }
    
    .text-xl {
        font-size: 1.125rem !important;
    }
}

/* Gradient Border */
.gradient-border {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--primary-gradient);
    border-radius: 14px;
    z-index: -1;
}

/* Loading Bar */
.loading-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    z-index: 9999;
    transition: width 0.3s ease;
}

/* Utility Classes */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.box-shadow-glow {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.3);
}

/* Hide scrollbar for Chrome, Safari and Opera */
.no-scrollbar::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.no-scrollbar {
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}