/* Unified Design System for MetaVie */

/* Color Variables */
:root {
    --primary-gradient-start: #667eea;
    --primary-gradient-end: #764ba2;
    --secondary-gradient-start: #764ba2;
    --secondary-gradient-end: #1A202C;
    --accent-color: #6B46C1;
    --text-light: white;
    --text-dark: #333;
    --card-bg: white;
    --input-border: #ddd;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

/* Base Styles */
body {
    font-family: 'Arial', sans-serif;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3 {
    margin-top: 0;
    font-weight: bold;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.8rem;
}

/* Layout Components */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

/* Navigation */
.nav {
    background: linear-gradient(135deg, var(--secondary-gradient-start), var(--secondary-gradient-end));
    padding: 20px;
    color: var(--text-light);
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    padding: 30px;
    margin-bottom: 30px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    color: var(--text-light);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    font-size: 16px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-light {
    color: var(--text-light);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
}

/* Responsive Grid */
.grid {
    display: grid;
    gap: 30px;
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

/* Image Overlays */
.image-overlay {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.image-overlay img {
    width: 100%;
    height: auto;
    display: block;
}

.overlay-content {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: var(--text-light);
}

/* Error/Success States */
.error {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: 5px;
}

.success {
    color: var(--success-color);
}