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

:root {
    --primary: #c41e3a;
    --primary-dark: #a01830;
    --secondary: #1a365d;
    --accent: #e8f4f8;
    --text: #2d3748;
    --text-light: #718096;
    --white: #ffffff;
    --gray-100: #f7fafc;
    --gray-200: #edf2f7;
    --gray-300: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text);
    border-radius: 2px;
    transition: 0.3s;
}

.hero {
    background: linear-gradient(135deg, var(--secondary) 0%, #2d4a77 100%);
    color: var(--white);
    padding: 8rem 2rem 5rem;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

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

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subheading {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

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

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

.btn-full {
    width: 100%;
}

.section {
    padding: 5rem 2rem;
}

.section h2 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 2rem;
    text-align: center;
}

.about {
    background: var(--white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text);
}

.lessons {
    background: var(--gray-100);
}

.lesson-list {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
}

.lesson-list li {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: var(--white);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.lesson-number {
    background: var(--primary);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.lesson-info h3 {
    color: var(--secondary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.lesson-info p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.audience {
    background: var(--white);
}

.audience-list {
    max-width: 700px;
    margin: 0 auto;
    list-style: none;
}

.audience-list li {
    padding: 1rem 1rem 1rem 3rem;
    position: relative;
    font-size: 1.1rem;
    color: var(--text);
    border-bottom: 1px solid var(--gray-200);
}

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

.audience-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.2rem;
}

.faq {
    background: var(--gray-100);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 1.25rem 3rem 1.25rem 1.5rem;
    background: var(--white);
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
    cursor: pointer;
    position: relative;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--gray-100);
}

.faq-question::after {
    content: "+";
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    content: "−";
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

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

.signup h2 {
    color: var(--white);
}

.signup-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.required {
    color: var(--primary);
}

.optional {
    color: var(--text-light);
    font-weight: 400;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 3px;
    flex-shrink: 0;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.9rem;
    line-height: 1.5;
    cursor: pointer;
}

footer {
    background: var(--text);
    color: var(--gray-300);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-brand {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-location {
    font-size: 0.9rem;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: var(--shadow);
        gap: 0;
    }

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

    .nav-links li {
        text-align: center;
        padding: 0.75rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 7rem 1.5rem 4rem;
        min-height: auto;
    }

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

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

    .section {
        padding: 3rem 1rem;
    }

    .section h2 {
        font-size: 1.6rem;
    }

    .lesson-list li {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }

    .signup-form {
        padding: 1.5rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}