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

:root {
    --primary: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --secondary: #EC4899;
    --accent: #06B6D4;
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    
    --bg-dark: #0A0A0F;
    --bg-darker: #050508;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --text-primary: #FFFFFF;
    --text-secondary: #9CA3AF;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

#particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.gradient-orbs {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary), transparent);
    top: -250px;
    left: -250px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--secondary), transparent);
    bottom: -200px;
    right: -200px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent), transparent);
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(100px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    animation: pulse 3s ease-in-out infinite;
}

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

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

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--glass);
}

.nav-link:hover::before {
    width: 80%;
}

.badge-temp {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--warning), #D97706);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    animation: pulse 2s ease-in-out infinite;
}

/* Buttons */
.btn-glow {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.btn-glow::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-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
}

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

.btn-primary {
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
}

.btn-large {
    width: 100%;
    padding: 1.25rem;
    font-size: 1.1rem;
}

/* Glass Card */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    border-radius: 24px;
    z-index: -1;
    opacity: 0.1;
}

/* Hero */
.hero {
    padding: 180px 0 100px;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-title {
    font-size: 5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 5s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 4rem;
}

.features-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-box {
    padding: 2rem;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.1), transparent);
    transition: left 0.8s ease;
}

.feature-box:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
}

.feature-box:hover::before {
    left: 100%;
}

.feature-icon {
    margin-bottom: 1rem;
}

.feature-icon img {
    width: 80px;
    height: 80px;
    animation: bounce-slow 3s ease-in-out infinite;
}

@keyframes bounce-slow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Upload Section */
.upload-section {
    padding: 4rem 0;
    position: relative;
    z-index: 1;
}

.upload-card {
    max-width: 900px;
    margin: 0 auto;
}

.card-header {
    text-align: center;
    margin-bottom: 3rem;
}

.card-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.upload-limit {
    color: var(--text-secondary);
    font-size: 1rem;
}

.dropzone {
    border: 2px dashed var(--glass-border);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--glass);
    position: relative;
    overflow: hidden;
}

.dropzone::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2), transparent);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.5s ease;
    border-radius: 50%;
}

.dropzone:hover::before,
.dropzone.drag-over::before {
    transform: translate(-50%, -50%) scale(1);
}

.dropzone.drag-over {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
}

.dropzone-inner {
    position: relative;
    z-index: 1;
}

.upload-icon {
    width: 100px;
    height: 100px;
    margin-bottom: 1.5rem;
}

.dropzone-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Form Elements */
.upload-options {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--glass-border);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-modern {
    width: 100%;
    padding: 1rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-modern:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
    background: rgba(139, 92, 246, 0.05);
}

.checkbox-modern {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.checkbox-modern input[type="checkbox"] {
    width: 24px;
    height: 24px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Upload Progress */
.upload-progress-section {
    margin-top: 3rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-box {
    padding: 1.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.file-item {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 10px;
    background: var(--glass);
    border-radius: 10px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 10px;
    transition: width 0.3s ease;
    position: relative;
}

.progress-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    to { left: 100%;  }
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    margin-top: 8rem;
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .features-showcase {
        grid-template-columns: 1fr;
    }
}