/* 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: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.nav-links button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

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

/* Hero Section */
.hero {
    text-align: center;
    color: white;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* API Demo Section */
.api-demo {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.api-demo h2 {
    color: #333;
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
}

.api-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    background: #f8f9fa;
}

.api-section h3 {
    color: #495057;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.api-section h4 {
    color: #6c757d;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

/* Buttons */
.btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 0.25rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-primary {
    background: #007bff;
}

.btn-success {
    background: #28a745;
}

.btn-success:hover {
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

/* Forms */
.form-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #dee2e6;
}

#user-form {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

#user-form input,
#user-form select {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 1rem;
}

#user-form input:focus,
#user-form select:focus {
    outline: none;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Result boxes */
.result-box {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 1rem;
    margin-top: 1rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    white-space: pre-wrap;
    overflow-x: auto;
    max-height: 300px;
    overflow-y: auto;
}

.result-box:empty {
    display: none;
}

/* Endpoint list */
.endpoint-list {
    list-style: none;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.endpoint-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e9ecef;
    font-family: monospace;
}

.endpoint-list li:last-child {
    border-bottom: none;
}

.endpoint-list strong {
    color: #28a745;
    margin-right: 0.5rem;
}

.endpoint-list code {
    background: #e9ecef;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: bold;
    color: #495057;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 2rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .container {
        padding: 1rem;
    }

    .api-demo {
        padding: 1rem;
    }

    #user-form {
        flex-direction: column;
    }

    #user-form input,
    #user-form select {
        min-width: auto;
    }
}

/* Animation for loading states */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s infinite;
}