* {
    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;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    margin-bottom: 40px;
    color: white;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header-title {
    text-align: left;
}

.header-title h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.header-title p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.welcome-text {
    font-size: 1rem;
    opacity: 0.9;
}

.logout-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.shorten-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 30px;
}

.shorten-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input[type="url"], input[type="text"] {
    padding: 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input[type="url"]:focus, input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.shorten-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.shorten-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.loading {
    text-align: center;
    color: #667eea;
    font-size: 1.1rem;
    margin-top: 20px;
}

.hidden {
    display: none !important;
}

.result-section, .stats-section {
    margin-bottom: 30px;
}

.result-card, .stats-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.result-card h3, .stats-card h3 {
    color: #28a745;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.url-display {
    margin-bottom: 20px;
}

.url-display label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.url-copy-group {
    display: flex;
    gap: 10px;
}

#shortUrlDisplay {
    flex: 1;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    background: #f8f9fa;
    font-family: monospace;
}

.copy-btn {
    background: #28a745;
    color: white;
    border: none;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-btn:hover {
    background: #218838;
}

.url-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.url-info p {
    margin-bottom: 8px;
}

.url-info span {
    word-break: break-all;
}

.result-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.visit-btn, .stats-btn, .new-url-btn, .close-btn, .refresh-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.visit-btn {
    background: #007bff;
    color: white;
}

.visit-btn:hover {
    background: #0056b3;
}

.stats-btn {
    background: #17a2b8;
    color: white;
}

.stats-btn:hover {
    background: #138496;
}

.new-url-btn {
    background: #28a745;
    color: white;
}

.new-url-btn:hover {
    background: #218838;
}

.close-btn {
    background: #dc3545;
    color: white;
}

.close-btn:hover {
    background: #c82333;
}

.refresh-btn {
    background: #6c757d;
    color: white;
    padding: 8px 15px;
    font-size: 0.9rem;
}

.refresh-btn:hover {
    background: #545b62;
}

.all-urls-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h3 {
    color: #333;
    font-size: 1.3rem;
}

.search-container {
    margin-bottom: 20px;
}

.search-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.clear-search-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.clear-search-btn:hover {
    background: #f0f0f0;
    color: #333;
}

.clear-search-link {
    background: #667eea;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s ease;
}

.clear-search-link:hover {
    background: #5a6fd8;
}

.urls-list {
    max-height: 400px;
    overflow-y: auto;
}

.url-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 4px solid #667eea;
    cursor: pointer;
    transition: all 0.3s ease;
}

.url-item:hover {
    background: #e9ecef;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.url-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.url-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.url-code {
    font-family: monospace;
    font-weight: bold;
    color: #667eea;
}

.url-clicks {
    background: #667eea;
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.url-original {
    color: #666;
    word-break: break-all;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.url-created {
    color: #888;
    font-size: 0.8rem;
    font-style: italic;
}

.url-delete-btn {
    background: none;
    border: none;
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: #dc3545;
}

.url-delete-btn:hover {
    background: #dc3545;
    color: white;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #28a745;
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast.error {
    background: #dc3545;
}

/* Login Page Styles */
.login-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #333;
    font-size: 2rem;
    margin-bottom: 10px;
}

.login-header p {
    color: #666;
    font-size: 1rem;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
}

.login-form {
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.login-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.login-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e9ecef;
}

.login-info p {
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: #666;
}

.login-info code {
    background: #e9ecef;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: #333;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-title {
        text-align: center;
    }
    
    .header-title h1 {
        font-size: 2rem;
    }
    
    .header-user {
        justify-content: center;
    }
    
    .input-group {
        gap: 10px;
    }
    
    .url-copy-group {
        flex-direction: column;
    }
    
    .result-actions {
        flex-direction: column;
    }
    
    .section-header {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .login-card {
        padding: 30px 20px;
    }
}