:root {
            --color-primary: #208090;
            --color-primary-hover: #187078;
            --color-primary-active: #155f66;
            --color-secondary: #f59e0b;
            --color-text: #1f2937;
            --color-text-light: #6b7280;
            --color-bg: #f9fafb;
            --color-surface: #ffffff;
            --color-border: #e5e7eb;
            --color-success: #10b981;
            --color-error: #ef4444;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --space-4: 4px;
            --space-8: 8px;
            --space-12: 12px;
            --space-16: 16px;
            --space-20: 20px;
            --space-24: 24px;
            --space-32: 32px;
            --space-48: 48px;
            --radius-6: 6px;
            --radius-8: 8px;
            --radius-12: 12px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --radius: 8px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.6;
        }

        /* Navigation */
        nav {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: var(--space-16);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: var(--space-8);
        }

        .logo span {
            color: var(--color-secondary);
        }

        .nav-menu {
            display: flex;
            gap: var(--space-32);
            list-style: none;
            align-items: center;
        }

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

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

        .btn-cta {
            background: var(--color-primary);
            color: white;
            padding: var(--space-8) var(--space-20);
            border-radius: var(--radius-6);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .btn-cta:hover {
            background: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-cta:active {
            background: var(--color-primary-active);
            transform: translateY(0);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #208090 0%, #187078 100%);
            color: white;
            padding: var(--space-48) var(--space-16);
            text-align: center;
            min-height: 600px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-content {
            max-width: 800px;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: var(--space-20);
            line-height: 1.2;
        }

        .hero p {
            font-size: 18px;
            margin-bottom: var(--space-32);
            opacity: 0.95;
        }

        .hero-buttons {
            display: flex;
            gap: var(--space-16);
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: white;
            color: var(--color-primary);
            padding: var(--space-12) var(--space-32);
            border-radius: var(--radius-6);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #f3f4f6;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: transparent;
            color: white;
            padding: var(--space-12) var(--space-32);
            border: 2px solid white;
            border-radius: var(--radius-6);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Features Section */
        .features {
            max-width: 1200px;
            margin: 0 auto;
            padding: var(--space-48) var(--space-16);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-48);
        }

        .section-header h2 {
            font-size: 36px;
            margin-bottom: var(--space-12);
            color: var(--color-primary);
        }

        .section-header p {
            font-size: 16px;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-32);
        }

        .feature-card {
            background: var(--color-surface);
            padding: var(--space-32);
            border-radius: var(--radius-12);
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid var(--color-border);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #208090, #187078);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin: 0 auto var(--space-16);
            color: white;
        }

        .feature-card h3 {
            font-size: 20px;
            margin-bottom: var(--space-12);
            color: var(--color-primary);
        }

        .feature-card p {
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* Programs Section */
        .programs {
            background: var(--color-bg);
            padding: var(--space-48) var(--space-16);
        }

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

        .programs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: var(--space-24);
        }

        .program-card {
            background: var(--color-surface);
            border-radius: var(--radius-12);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid var(--color-border);
        }

        .program-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .program-header {
            background: linear-gradient(135deg, #208090, #187078);
            color: white;
            padding: var(--space-24);
            text-align: center;
        }

        .program-header h3 {
            font-size: 22px;
            margin-bottom: var(--space-8);
        }

        .program-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            padding: var(--space-4) var(--space-12);
            border-radius: var(--radius-6);
            font-size: 12px;
            margin-bottom: var(--space-12);
        }

        .program-body {
            padding: var(--space-24);
        }

        .program-details {
            list-style: none;
            margin-bottom: var(--space-24);
        }

        .program-details li {
            padding: var(--space-8) 0;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-light);
            display: flex;
            gap: var(--space-8);
            align-items: center;
        }

        .program-details li:last-child {
            border-bottom: none;
        }

        .program-details li:before {
            content: "✓";
            color: var(--color-success);
            font-weight: bold;
            flex-shrink: 0;
        }

        .program-footer {
            padding: var(--space-16) var(--space-24);
            border-top: 1px solid var(--color-border);
            text-align: center;
        }

        .btn-learn {
            background: var(--color-primary);
            color: white;
            padding: var(--space-10) var(--space-24);
            border-radius: var(--radius-6);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            display: inline-block;
            font-size: 14px;
        }

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

        /* Stats Section */
        .stats {
            background: linear-gradient(135deg, #208090, #187078);
            color: white;
            padding: var(--space-48) var(--space-16);
        }

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

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-32);
            text-align: center;
        }

        .stat-item h4 {
            font-size: 40px;
            font-weight: 700;
            margin-bottom: var(--space-8);
            color: var(--color-secondary);
        }

        .stat-item p {
            font-size: 16px;
            opacity: 0.9;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-surface);
            padding: var(--space-48) var(--space-16);
            margin: var(--space-48) auto;
            max-width: 800px;
            border-radius: var(--radius-12);
            border: 2px solid var(--color-primary);
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .cta-section h2 {
            font-size: 32px;
            margin-bottom: var(--space-16);
            color: var(--color-primary);
        }

        .cta-section p {
            font-size: 16px;
            color: var(--color-text-light);
            margin-bottom: var(--space-24);
        }

        /* Footer */
        footer {
            background: #1f2937;
            color: white;
            padding: var(--space-48) var(--space-16);
            margin-top: var(--space-48);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-32);
            margin-bottom: var(--space-32);
        }

        .footer-section h4 {
            margin-bottom: var(--space-16);
            color: var(--color-secondary);
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section a {
            color: #d1d5db;
            text-decoration: none;
            font-size: 14px;
            line-height: 2;
            transition: color 0.3s;
        }

        .footer-section a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: var(--space-24);
            text-align: center;
            font-size: 14px;
            color: #9ca3af;
        }

        /* Responsive */
        @media (max-width: 768px) {
    .nav-menu {
        display: none;              /* hidden by default, JS will toggle to flex */
        position: absolute;
        top: 64px;                  /* just below nav bar height */
        left: 0;
        right: 0;
        background: var(--color-surface);
        padding: var(--space-12) var(--space-16);
        list-style: none;
        /* horizontal layout */
        display: none;
        flex-direction: column;
        justify-content: space-around;
        align-items: center;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .nav-menu li {
        margin: 0;
    }

    .nav-menu a {
        display: block;
        padding: var(--space-8) var(--space-12);
        font-size: 14px;
    }

    .menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 32px;
    }

    .section-header h2 {
        font-size: 24px;
    }

    .features-grid,
    .programs-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .cta-section {
        margin: var(--space-32) auto;
    }

    .cta-section h2 {
        font-size: 24px;
    }
}
.form-group {
            margin-bottom: var(--spacing-lg);
        }

        label {
            display: block;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            color: var(--color-text);
            font-size: 14px;
        }

        .label-help {
            color: var(--color-text-secondary);
            font-weight: 400;
            font-size: 12px;
            margin-top: 4px;
        }

        input[type="text"],
        input[type="email"],
        input[type="number"],
        input[type="tel"],
        select,
        textarea {
            width: 100%;
            padding: var(--spacing-md);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 14px;
            color: var(--color-text);
            background: #fafafa;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        input[type="text"]:focus,
        input[type="email"]:focus,
        input[type="number"]:focus,
        input[type="tel"]:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            background: var(--color-surface);
            box-shadow: 0 0 0 3px rgba(32, 128, 160, 0.1);
        }

        .radio-group,
        .checkbox-group {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .radio-item,
        .checkbox-item {
            display: flex;
            align-items: center;
            padding: var(--spacing-md);
            background: #f9f9f9;
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            cursor: pointer;
            transition: all 0.2s;
        }

        .radio-item:hover,
        .checkbox-item:hover {
            background: #f0f5f8;
            border-color: var(--color-primary);
        }

        .radio-item input,
        .checkbox-item input {
            margin-right: var(--spacing-md);
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .radio-item label,
        .checkbox-item label {
            margin: 0;
            flex: 1;
            cursor: pointer;
            font-weight: 500;
        }

        .success-message {
            display: none;
            background: #d4edda;
            color: #155724;
            padding: var(--spacing-lg);
            border-radius: var(--radius);
            border: 1px solid #c3e6cb;
            margin-bottom: var(--spacing-lg);
        }

        .success-message.show {
            display: block;
        }

        .result-section {
            display: none;
            margin-top: var(--spacing-xl);
        }

        .result-section.show {
            display: block;
        }

        .skill-path {
            background: #e8f4f8;
            border-left: 4px solid var(--color-primary);
            padding: var(--spacing-lg);
            border-radius: var(--radius);
            margin-bottom: var(--spacing-md);
        }

        .skill-path h3 {
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
        }

        .skill-path p {
            color: var(--color-text-secondary);
            font-size: 13px;
            line-height: 1.6;
        }