:root {
    --brand-purple: #B8A4E8;
    --brand-teal: #4ECDC4;
    --brand-orange: #FF6B35;
    --bg-light: #F7F8FA;
    --bg-dark: #1A1A2E;
    --text-primary: #333333;
    --text-secondary: #666666;
    --surface: #FFFFFF;
    --surface-muted: #F1F3F7;
    --border: rgba(27, 31, 36, 0.12);
    --shadow: 0 18px 40px rgba(18, 31, 64, 0.12);
    --gradient-brand: linear-gradient(135deg, #B8A4E8, #4ECDC4, #FF6B35);
    --gradient-warm: linear-gradient(90deg, #4ECDC4, #FF6B35);
    --gradient-cool: linear-gradient(90deg, #B8A4E8, #4ECDC4);
}

@media (prefers-color-scheme: dark) {
    :root {
        --brand-purple: #CCBDF2;
        --brand-teal: #66DAD1;
        --brand-orange: #FF8C42;
        --bg-light: #1A1A2E;
        --text-primary: #E0E0E0;
        --text-secondary: #AAAAAA;
        --surface: #242844;
        --surface-muted: #1F233B;
        --border: rgba(255, 255, 255, 0.12);
        --shadow: 0 16px 36px rgba(5, 7, 20, 0.45);
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", sans-serif;
    background-color: var(--bg-light);
    background-image:
        radial-gradient(circle at 20% 20%, rgba(184, 164, 232, 0.35), transparent 60%),
        radial-gradient(circle at 70% 10%, rgba(78, 205, 196, 0.25), transparent 55%),
        radial-gradient(circle at 85% 35%, rgba(255, 107, 53, 0.2), transparent 50%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    position: relative;
}

main.page {
    max-width: 920px;
    margin: 0 auto;
    padding: 2.75rem 1.5rem 3.75rem;
    position: relative;
    z-index: 1;
}

.logo {
    height: 64px;
    width: auto;
    margin-bottom: 1rem;
    display: block;
}

h1 {
    color: var(--brand-orange);
    font-size: clamp(2.2rem, 4vw, 3.1rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

h2 {
    color: var(--brand-purple);
    margin-top: 2.2rem;
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

h3 {
    margin-top: 1.6rem;
    margin-bottom: 0.6rem;
    font-size: 1.1rem;
}

p,
ul,
ol {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

ul,
ol {
    padding-left: 1.5rem;
}

a {
    color: var(--brand-orange);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
    color: #E85923;
    opacity: 0.92;
}

.tagline {
    color: var(--brand-purple);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin: 2.25rem 0;
    text-align: left;
}

.feature {
    background: var(--surface);
    padding: 1.25rem 1.4rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.feature h3 {
    color: var(--brand-orange);
    margin-top: 0;
}

.badge {
    margin-top: 2.2rem;
}

.badge em {
    color: var(--text-secondary);
}

.links,
.footer-links {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.links a,
.footer-links a,
.nav a {
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    background: var(--surface-muted);
    border: 1px solid transparent;
}

.links a:hover,
.footer-links a:hover,
.nav a:hover {
    border-color: var(--brand-orange);
}

.contact {
    margin-top: 2rem;
    color: var(--text-secondary);
}

.nav {
    margin-bottom: 2.25rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    box-shadow: var(--shadow);
    display: inline-flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.updated {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.warning {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.12), rgba(78, 205, 196, 0.12));
    border: 1px solid rgba(255, 107, 53, 0.35);
    padding: 1.25rem;
    border-radius: 14px;
    margin: 1.5rem 0;
}

.contact-box,
.faq {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.contact-box {
    text-align: center;
    margin: 2rem 0;
}

.contact-box p,
.faq p {
    color: var(--text-secondary);
}

.faq {
    margin-bottom: 1rem;
}

.faq h3 {
    color: var(--brand-orange);
    margin-top: 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

@media (max-width: 720px) {
    main.page {
        padding: 2.25rem 1.2rem 3rem;
    }

    .links,
    .footer-links {
        flex-direction: column;
        align-items: flex-start;
    }
}