/* AI Music Creation Platform - Styles */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header h1 {
    font-size: 2rem;
    font-weight: 300;
}

.header nav {
    margin-top: 0.5rem;
}

.header nav a {
    color: white;
    text-decoration: none;
    margin-right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.header nav a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Main Content */
.main {
    min-height: 80vh;
    padding: 2rem 0;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    max-width: 400px;
    margin: 0 auto;
}

.card h2 {
    color: #667eea;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 400;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #6c757d;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* Links */
.auth-links {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-links a {
    color: #667eea;
    text-decoration: none;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    border: 1px solid transparent;
}

.alert-error {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

/* Account Page */
.account-info {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.account-info h2 {
    color: #667eea;
    margin-bottom: 1.5rem;
}

.info-item {
    margin-bottom: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 500;
    color: #555;
    margin-bottom: 0.25rem;
}

.info-value {
    color: #333;
}

/* Home Page Styles */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 3rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions .btn {
    width: auto;
    min-width: 150px;
}

.features {
    padding: 3rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #667eea;
    margin-bottom: 1rem;
    font-weight: 500;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

.cta-section {
    background: #f8f9fa;
    padding: 3rem 0;
    text-align: center;
    border-radius: 8px;
    margin: 2rem 0;
}

.cta-section h2 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.cta-section p {
    color: #666;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .main {
        padding: 1rem 0;
    }
}

/* Footer */
.footer {
    background: #343a40;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    animation: fadeIn 0.6s ease-out;
}