/* FashionAI - Modern CSS Styles */

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-soft: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-large: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #374151;
    overflow-x: hidden;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(99, 102, 241, 0.95) !important;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: white !important;
    transform: translateY(-1px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: var(--secondary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-image {
    position: relative;
    z-index: 2;
}

.image-placeholder {
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.image-placeholder:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

/* Buttons */
.btn {
    border-radius: 12px;
    font-weight: 600;
    padding: 12px 24px;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

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

.btn-primary {
    background: var(--primary-color);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-warning {
    background: var(--secondary-color);
    color: white;
    box-shadow: var(--shadow-soft);
}

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    color: white;
}

.btn-success {
    background: var(--success-color);
    box-shadow: var(--shadow-soft);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    background: transparent;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    transform: translateY(-2px);
}

/* Cards */
.card {
    border-radius: 20px;
    border: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

/* Upload Zone */
.upload-zone {
    border: 3px dashed #d1d5db;
    border-radius: 20px;
    padding: 4rem 2rem;
    transition: all 0.3s ease;
    background: #fafafa;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: #f8fafc;
    transform: translateY(-2px);
}

.upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    transform: scale(1.02);
}

.upload-content {
    transition: all 0.3s ease;
}

.upload-zone:hover .upload-content {
    transform: translateY(-5px);
}

/* Image Preview */
.preview-container, .result-container {
    position: relative;
}

.preview-container img, .result-container img {
    border-radius: 15px;
    transition: all 0.3s ease;
    max-height: 400px;
    object-fit: cover;
    width: 100%;
}

.preview-container img:hover, .result-container img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-medium);
}

/* Generation Controls */
.generation-controls {
    background: #f8fafc;
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid #e5e7eb;
}

.form-control {
    border-radius: 12px;
    border: 2px solid #e5e7eb;
    padding: 12px 16px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Loading State */
#loading-state {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 20px;
    margin: 2rem 0;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

.progress {
    border-radius: 10px;
    background: rgba(99, 102, 241, 0.1);
}

.progress-bar {
    background: var(--gradient-primary);
    border-radius: 10px;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.feature-icon {
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

/* Step Cards */
.step-card {
    position: relative;
    padding: 2rem 1rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
}

.step-card:hover .step-number {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

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

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

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

.pulse {
    animation: pulse 2s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 2rem 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .upload-zone {
        padding: 2rem 1rem;
    }
    
    .feature-card, .step-card {
        margin-bottom: 2rem;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .display-5 {
        font-size: 2.5rem;
    }
    
    .card-body {
        padding: 2rem 1.5rem;
    }
}

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

.bg-gradient-primary {
    background: var(--gradient-primary);
}

.bg-gradient-secondary {
    background: var(--gradient-secondary);
}

/* Loading Animation */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: loading-dots 1.5s infinite;
}

@keyframes loading-dots {
    0%, 20% {
        content: '';
    }
    40% {
        content: '.';
    }
    60% {
        content: '..';
    }
    80%, 100% {
        content: '...';
    }
}

/* Success Animation */
@keyframes success-bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.success-bounce {
    animation: success-bounce 1s ease-in-out;
}

/* Error States */
.error-state {
    border-color: var(--danger-color) !important;
    background: rgba(239, 68, 68, 0.05) !important;
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Success States */
.success-state {
    border-color: var(--success-color) !important;
    background: rgba(16, 185, 129, 0.05) !important;
}

/* Custom Focus States */
.btn:focus,
.form-control:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    #loading-state {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}