/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #FBFDFF;
    --surface: #FFFFFF;
    --primary: #2A7FFF;
    --primary-light: #7BD8FF;
    --accent: #36D1A5;
    --ink: #0F1B2D;
    --muted: #5A6878;
    --radius: 20px;
    --shadow: 0 10px 40px -20px rgba(10,40,80,0.15);
    --max-content: 720px;
    --max-page: 1120px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 17px;
    line-height: 1.7;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: 'Fraunces', Georgia, serif;
    line-height: 1.15;
    font-weight: 700;
    color: var(--ink);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 0.6em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 2em 0 0.8em; }
h3 { font-size: 1.25rem; margin: 1.5em 0 0.5em; }

p { margin-bottom: 1.2em; }

a { color: var(--primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

img { max-width: 100%; height: auto; border-radius: var(--radius); }

.container {
    max-width: var(--max-page);
    margin: 0 auto;
    padding: 0 24px;
}

/* === Header === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(251, 253, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(42, 127, 255, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    max-width: var(--max-page);
    margin: 0 auto;
}

.logo {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}
.logo:hover { color: var(--primary); }

.site-nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--primary); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: 0.3s;
}

/* === Homepage Hero === */
.hero {
    text-align: center;
    padding: 60px 0 40px;
    background: linear-gradient(135deg, rgba(123,216,255,0.12) 0%, rgba(42,127,255,0.08) 100%);
    border-radius: var(--radius);
    margin: 32px 0;
}

.hero h1 { margin-bottom: 0.4em; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 560px; margin: 0 auto 1.5em; }

/* === Content Cards === */
.section-title {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 1.6rem;
    margin: 48px 0 24px;
    text-align: center;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    transition: transform 0.25s, box-shadow 0.25s;
    text-decoration: none;
    color: var(--ink);
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px -16px rgba(10,40,80,0.2);
    color: var(--ink);
}

.card-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: rgba(42,127,255,0.08);
    padding: 4px 10px;
    border-radius: 8px;
    width: fit-content;
}

.card h3 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.35;
}

.card p {
    font-size: 0.92rem;
    color: var(--muted);
    margin: 0;
    line-height: 1.55;
}

/* === Brand Tiles === */
.brand-tiles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.brand-tile {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--ink);
    font-family: 'Fraunces', Georgia, serif;
    font-size: 1.15rem;
    font-weight: 700;
    transition: transform 0.25s, box-shadow 0.25s;
}
.brand-tile:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 48px -16px rgba(10,40,80,0.2);
    color: var(--ink);
}

/* === Affiliate CTA === */
.cta-wrap {
    text-align: center;
    margin: 2em 0;
    padding: 28px 20px;
    background: linear-gradient(135deg, rgba(123,216,255,0.1) 0%, rgba(42,127,255,0.06) 100%);
    border-radius: var(--radius);
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: #fff;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(42,127,255,0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    letter-spacing: 0.01em;
}
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(42,127,255,0.4);
    color: #fff;
}

.cta-disclosure {
    font-size: 0.8rem;
    color: var(--muted);
    margin-top: 10px;
}

/* === Article Body === */
article {
    max-width: var(--max-content);
    margin: 0 auto;
    padding: 40px 0;
}

article p { color: #2c3a4a; }

/* === Keyword Page Hero === */
.page-hero {
    text-align: center;
    padding: 48px 0 32px;
}
.page-hero h1 { margin-bottom: 0.5em; }

/* === Trust Section === */
.trust-section {
    text-align: center;
    padding: 40px 20px;
    margin: 32px 0;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* === Footer === */
.site-footer {
    background: var(--surface);
    border-top: 1px solid rgba(42,127,255,0.08);
    margin-top: 60px;
    padding: 48px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 32px;
}

.footer-brand p { color: var(--muted); font-size: 0.92rem; line-height: 1.65; }
.footer-links h4, .footer-legal h4 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink);
    margin-bottom: 14px;
}

.footer-links ul, .footer-legal ul {
    list-style: none;
}

.footer-links li, .footer-legal li { margin-bottom: 8px; }
.footer-links a, .footer-legal a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9rem;
}
.footer-links a:hover, .footer-legal a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    padding: 20px 24px 28px;
    border-top: 1px solid rgba(42,127,255,0.06);
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--muted);
    margin-bottom: 4px;
}

.affiliate-disclosure { font-style: italic; }

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

    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        flex-direction: column;
        padding: 16px 24px;
        gap: 12px;
        box-shadow: 0 8px 24px rgba(10,40,80,0.1);
        border-bottom-left-radius: var(--radius);
        border-bottom-right-radius: var(--radius);
    }
    .site-nav.open { display: flex; }

    .cards-grid { grid-template-columns: 1fr; }
    .brand-tiles { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }

    .hero { padding: 40px 20px; margin: 20px 0; }
    .cta-button { padding: 14px 32px; font-size: 0.95rem; }
}

@media (max-width: 480px) {
    .brand-tiles { grid-template-columns: 1fr 1fr; gap: 10px; }
    .brand-tile { padding: 24px 12px; font-size: 1rem; }
}