* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #E30A17;
    --secondary-color: #B80812;
    --accent-color: #FF1A28;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #f9fafb;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* Navbar */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

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

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

/* Buttons */
.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--bg-color);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Demo Section */
.demo-section {
    padding: 4rem 0;
    background: var(--white);
}

.demo-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.demo-description {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.demo-selects {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.select-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.select-group label {
    font-weight: 600;
    color: var(--text-color);
}

.demo-select {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--white);
    cursor: pointer;
    transition: border-color 0.3s;
}

.demo-select:hover:not(:disabled) {
    border-color: var(--primary-color);
}

.demo-select:disabled {
    background: var(--bg-color);
    cursor: not-allowed;
    opacity: 0.6;
}

.demo-result {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.demo-result h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.demo-result pre {
    background: #1a1a1a;
    color: #00ff00;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    max-height: 400px;
    overflow-y: auto;
}

/* Pricing Section */
.pricing-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

.pricing-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: relative;
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
}

.badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

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

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price .amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price .period {
    color: var(--text-light);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-card .btn {
    width: 100%;
}

/* Docs Section */
.docs-section {
    padding: 4rem 0;
    background: var(--white);
}

.docs-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.docs-content {
    max-width: 900px;
    margin: 0 auto;
}

.doc-block {
    margin-bottom: 3rem;
}

.doc-block h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.doc-block h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.doc-block p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.code-block {
    background: var(--text-color);
    color: #10b981;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
}

.code-block code,
.code-block pre {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}

.endpoint {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

/* Dashboard Section */
.dashboard-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

.dashboard-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.dashboard-login {
    max-width: 600px;
    margin: 0 auto;
}

.login-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.login-form h3 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.input-field {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: border-color 0.3s;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
}

.dashboard-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.stat-card h4 {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.api-key-display {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
}

.api-key-display h4 {
    margin-bottom: 1rem;
}

.api-key-display code {
    display: block;
    background: var(--text-color);
    color: var(--success-color);
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    word-break: break-all;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
}

.close:hover {
    color: var(--text-color);
}

.api-key-box {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.api-key-box code {
    display: block;
    background: var(--text-color);
    color: var(--success-color);
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    word-break: break-all;
}

.warning {
    color: var(--warning-color);
    font-weight: 600;
    text-align: center;
}

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-button svg {
    width: 35px;
    height: 35px;
    fill: white;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--text-color);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    white-space: nowrap;
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.whatsapp-button:hover .whatsapp-tooltip {
    opacity: 1;
}

/* Footer */
.footer {
    background: var(--text-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        gap: 0;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .navbar .container {
        flex-direction: row;
        gap: 1rem;
    }

    .nav-brand h1 {
        font-size: 1.2rem;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        padding: 0 1rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .demo-container {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .demo-result pre {
        font-size: 0.75rem;
        max-height: 300px;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .docs-content {
        padding: 0 1rem;
    }

    .code-block {
        font-size: 0.75rem;
        overflow-x: auto;
    }

    .modal-content {
        width: 95%;
        margin: 20% auto;
        padding: 1.5rem;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 1.5rem;
    }

    .demo-section h2,
    .pricing-section h2,
    .docs-section h2,
    .dashboard-section h2 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}