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

:root {
    --primary-color: #1a5f7a;
    --primary-dark: #134b61;
    --secondary-color: #c41e3a;
    --text-color: #333333;
    --text-light: #666666;
    --background: #fafafa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --error-color: #d32f2f;
    --success-color: #2e7d32;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

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

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

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

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.95;
    line-height: 1.7;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #a91830;
    text-decoration: none;
    transform: translateY(-2px);
}

section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

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

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

.about p:last-child {
    margin-bottom: 0;
}

.topics {
    background: var(--background);
}

.topics-list {
    list-style: none;
    display: grid;
    gap: 1.5rem;
}

.topics-list li {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.topics-list h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

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

.who-should-join {
    background: var(--white);
}

.benefits-list {
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.benefits-list li {
    padding-left: 1.75rem;
    position: relative;
    color: var(--text-light);
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

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

.faq-list {
    display: grid;
    gap: 1rem;
}

.faq-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq-item h3 {
    color: var(--text-color);
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

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

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

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

.signup > .container > p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

#signup-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    max-width: 600px;
}

.form-group {
    margin-bottom: 1.25rem;
}

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

.form-group input.error,
.form-group select.error {
    border-color: var(--error-color);
}

.error-message {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    width: auto;
}

.checkbox-group label {
    flex: 1;
    font-weight: normal;
    font-size: 0.9rem;
    color: var(--text-light);
}

#signup-form .btn {
    width: 100%;
    margin-top: 0.5rem;
}

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

.footer-brand {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

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

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--text-color);
    color: var(--white);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    z-index: 2000;
}

.cookie-banner.hidden {
    display: none;
}

.cookie-banner p {
    font-size: 0.9rem;
}

.cookie-banner a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
}

.cookie-banner button {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
}

.cookie-banner button:hover {
    background: var(--primary-dark);
}

.page-simple {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-simple main {
    flex: 1;
    padding: 4rem 0;
}

.page-simple .content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.page-simple h1 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.page-simple h2 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.page-simple p,
.page-simple li {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.page-simple ul {
    padding-left: 1.5rem;
}

.thank-you-page {
    text-align: center;
    padding: 6rem 0;
}

.thank-you-page h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.thank-you-page p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }

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

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

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

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

    .hero h1 {
        font-size: 1.75rem;
    }

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

    section {
        padding: 3rem 0;
    }

    section h2 {
        font-size: 1.5rem;
    }

    .cookie-banner {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}