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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

/* Layout */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

header {
    background: #2c3e50;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
}

.user-info {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Auth Screen */
#auth-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

#auth-screen .container {
    background: white;
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    max-width: 400px;
    width: 100%;
}

#auth-screen h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #e0e0e0;
}

.tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: #666;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

#auth-screen button {
    width: 100%;
    background: #667eea;
    color: white;
}

#auth-screen button:hover {
    background: #5568d3;
}

/* Messages */
.message {
    padding: 0.75rem;
    margin-top: 1rem;
    border-radius: 4px;
    display: none;
}

.message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.info {
    display: block;
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Dashboard */
.actions {
    margin-bottom: 2rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: all 0.3s;
}

.project-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.project-card p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-card .meta {
    font-size: 0.85rem;
    color: #999;
}

.project-card .url {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
}

/* Project Screen */
.project-info {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    display: flex;
    gap: 2rem;
}

.project-info a {
    color: #667eea;
    text-decoration: none;
}

.ai-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.ai-panel h2 {
    margin-bottom: 1rem;
}

.ai-panel textarea {
    resize: vertical;
    min-height: 100px;
}

.preview-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.preview-panel iframe {
    width: 100%;
    height: 500px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.code-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.code-panel pre {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
}

.code-panel code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.deployments-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
}

.deployment-item {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

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

.deployment-item .hash {
    font-family: monospace;
    color: #667eea;
    font-size: 0.9rem;
}

.deployment-item .date {
    color: #999;
    font-size: 0.85rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.modal-actions button {
    flex: 1;
}

/* Loading State */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-info {
        flex-direction: column;
    }
}