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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

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

/* Header */
header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.logo span {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.header-controls span {
    color: white;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

.upgrade-link {
    color: #ffd700;
    text-decoration: none;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.upgrade-link:hover {
    background: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.login-btn, .logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
    font-size: 0.9rem;
}

.login-btn:hover, .logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.dark-mode-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dark-mode-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Main Content */
main {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    color: #764ba2;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: #666;
    font-size: 1.1rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

input, textarea, select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #764ba2;
}

textarea {
    min-height: 200px;
    resize: vertical;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.form-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f8f9fa;
    color: #764ba2;
    border: 2px solid #e1e5e9;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #ece7fa;
    border-color: #bba6e6;
    color: #4b2e83;
}

/* Loading State */
.loading {
    text-align: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #764ba2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Result State */
.result {
    text-align: center;
    padding: 2rem;
}

.result h3 {
    color: #28a745;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.url-display {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.url-display input {
    flex: 1;
    min-width: 300px;
    font-family: monospace;
    background: #f8f9fa;
}

.qr-code-container {
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.expiry-info {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

/* Paste View */
.paste-view {
    padding: 2rem;
}

.paste-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e1e5e9;
}

.paste-header h2 {
    color: #764ba2;
    margin-bottom: 0.5rem;
}

.paste-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    color: #666;
    font-size: 0.9rem;
}

.paste-meta span {
    background: #f8f9fa;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

.paste-content {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    overflow-x: auto;
}

.paste-content pre {
    margin: 0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.paste-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Footer */
footer {
    text-align: center;
    color: white;
    padding: 2rem 0;
    opacity: 0.8;
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-left: 1rem;
}

footer a:hover {
    color: white;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
    color: #764ba2;
    margin-bottom: 1.5rem;
    text-align: center;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.feature-warning {
    margin-top: 0.5rem;
    display: block;
}

/* Dark Mode */
body.dark-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

body.dark-mode main {
    background: #2d3748;
    color: #e2e8f0;
}

body.dark-mode input,
body.dark-mode textarea,
body.dark-mode select {
    background: #4a5568;
    border-color: #718096;
    color: #e2e8f0;
}

body.dark-mode .btn-secondary {
    background: #4a5568;
    border-color: #718096;
    color: #e2e8f0;
}

body.dark-mode .paste-content {
    background: #4a5568;
}

/* Responsive Design */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .url-display {
        flex-direction: column;
    }
    
    .url-display input {
        min-width: auto;
    }
    
    .paste-actions {
        flex-direction: column;
    }
    
    .header-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .container {
        padding: 0 10px;
    }
    
    main {
        padding: 1rem;
    }
}