:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #0f172a;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-lighter: #94a3b8;
    --color-background: #ffffff;
    --color-background-alt: #f8fafc;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-secondary);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-secondary);
    transition: all var(--transition);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-list a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
}

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

.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--color-background-alt) 0%, var(--color-background) 100%);
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-light);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.section {
    padding: 100px 0;
}

.section h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
}

.features {
    background-color: var(--color-background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.audience {
    background-color: var(--color-background-alt);
}

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

.audience-card {
    padding: 40px 32px;
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.audience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.audience-icon {
    color: var(--color-primary);
    margin-bottom: 24px;
}

.audience-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.audience-card p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.how-it-works {
    background-color: var(--color-background);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: #ffffff;
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 24px;
}

.step h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.step p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
}

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

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

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    background-color: var(--color-background);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    color: var(--color-secondary);
    transition: all var(--transition);
}

.faq-question:hover {
    background-color: var(--color-background-alt);
}

.faq-question svg {
    flex-shrink: 0;
    color: var(--color-text-light);
    transition: transform var(--transition);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 24px 20px;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.7;
}

.contact {
    background-color: var(--color-background);
}

.contact-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 500px;
    margin: -40px auto 48px;
}

.contact-form {
    max-width: 560px;
    margin: 0 auto;
    background-color: var(--color-background-alt);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-secondary);
}

.form-group .required {
    color: #ef4444;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-background);
    transition: all var(--transition);
    font-family: inherit;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 48px;
}

.form-group-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.form-group-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-group-checkbox label {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-light);
    margin-bottom: 0;
    cursor: pointer;
    line-height: 1.5;
}

.btn-submit {
    width: 100%;
    padding: 14px 28px;
    font-size: 16px;
    margin-top: 8px;
}

.footer {
    background-color: var(--color-secondary);
    color: #ffffff;
    padding: 48px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
}

.footer-disclaimer {
    font-size: 13px;
    color: var(--color-text-lighter);
    max-width: 400px;
    margin-top: 12px;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--color-text-lighter);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-text-lighter);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-list {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background-color: var(--color-background);
        border-bottom: 1px solid var(--color-border);
        display: none;
    }

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

    .nav-list li {
        width: 100%;
    }

    .nav-list a {
        display: block;
        padding: 16px 24px;
        border-bottom: 1px solid var(--color-border);
    }

    .hero {
        padding: 120px 0 80px;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

    .section {
        padding: 60px 0;
    }

    .section h2 {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .feature-card {
        padding: 24px;
    }

    .steps {
        gap: 32px;
    }

    .contact-form {
        padding: 24px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .footer-disclaimer {
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

.page-content {
    padding: 120px 0 80px;
    min-height: calc(100vh - 200px);
}

.page-content h1 {
    font-size: 36px;
    margin-bottom: 40px;
}

.page-content h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    text-align: left;
}

.page-content p {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.page-content ul {
    margin: 16px 0 24px 24px;
    color: var(--color-text-light);
}

.page-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.thank-you-page {
    text-align: center;
    padding: 160px 0 100px;
    min-height: calc(100vh - 200px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.thank-you-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-success);
    color: #ffffff;
    border-radius: 50%;
    margin-bottom: 32px;
}

.thank-you-page h1 {
    font-size: 36px;
    margin-bottom: 16px;
}

.thank-you-page p {
    font-size: 18px;
    color: var(--color-text-light);
    max-width: 500px;
    margin-bottom: 32px;
}