:root {
    --primary: #533afd;
    --primary-deep: #4434d4;
    --primary-press: #2e2b8c;
    --ink: #0d253d;
    --ink-secondary: #273951;
    --ink-mute: #64748d;
    --canvas: #ffffff;
    --canvas-soft: #f6f9fc;
    --canvas-cream: #f5e9d4;
    --hairline: #e3e8ee;
    --ruby: #ea2261;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    font-weight: 300;
    color: var(--ink);
    background: var(--canvas);
    line-height: 1.5;
}

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

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

h1, h2, h3, h4 { font-weight: 300; letter-spacing: -0.5px; margin: 0 0 16px; color: var(--ink); }
h1 { font-size: 40px; line-height: 1.1; }
h2 { font-size: 28px; line-height: 1.2; margin-top: 40px; }
h3 { font-size: 20px; line-height: 1.3; }
p { margin: 0 0 16px; color: var(--ink-secondary); }

.skip-link {
    position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff; padding: 8px 16px; z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--canvas-soft);
    border-right: 1px solid var(--hairline);
    padding: 32px 24px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-brand a {
    font-size: 20px;
    font-weight: 400;
    color: var(--ink);
    text-decoration: none;
}
.sidebar-brand span { color: var(--primary); }

.sidebar-nav { margin-top: 32px; }
.sidebar-nav ul { list-style: none; padding: 0; margin: 0; }
.sidebar-nav li { margin-bottom: 4px; }
.sidebar-nav a {
    display: block;
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--ink-secondary);
    font-size: 15px;
    text-decoration: none;
}
.sidebar-nav a:hover { background: #ffffff; color: var(--primary); }

.sidebar-foot { margin-top: 48px; }
.sidebar-foot p { font-size: 12px; color: var(--ink-mute); }

.sidebar-toggle {
    display: none;
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 50;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 9999px;
    padding: 10px 18px;
    font-size: 14px;
}

.content-area {
    flex: 1;
    min-width: 0;
    padding: 48px 64px;
}

.hero-mesh {
    background: linear-gradient(120deg, var(--canvas-cream), #f9d8e6, #cdb9fb, var(--primary), var(--ruby));
    border-radius: 16px;
    padding: 64px 48px;
    margin-bottom: 48px;
    color: #fff;
}
.hero-mesh h1 { color: #fff; font-size: 44px; max-width: 720px; }
.hero-mesh p { color: rgba(255,255,255,0.92); font-size: 18px; max-width: 620px; }

.btn {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 9999px;
    font-size: 15px;
    font-weight: 400;
    text-decoration: none;
    border: none;
    cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-press); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-secondary:hover { text-decoration: none; background: #f6f5ff; }

.section { margin-bottom: 56px; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.article-card {
    background: var(--canvas);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: box-shadow .15s ease;
}
.article-card:hover { box-shadow: 0 8px 24px rgba(0,55,112,0.08); text-decoration: none; }
.article-card .tag {
    display: inline-block;
    background: #b9b9f9;
    color: var(--primary-deep);
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 12px;
    align-self: flex-start;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.article-card h3 { margin-bottom: 8px; font-size: 18px; }
.article-card p { font-size: 14px; margin-bottom: 0; }
.article-card .date { font-size: 12px; color: var(--ink-mute); margin-top: 16px; }

.breadcrumb { margin-bottom: 24px; font-size: 13px; color: var(--ink-mute); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; padding: 0; margin: 0; gap: 4px; }
.breadcrumb a { color: var(--ink-mute); }
.breadcrumb .sep { margin: 0 4px; }

.related-content { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--hairline); }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 16px; }
.related-card { display: block; background: var(--canvas-soft); border-radius: 10px; padding: 16px; text-decoration: none; color: inherit; }
.related-card:hover { text-decoration: none; box-shadow: 0 4px 16px rgba(0,55,112,0.08); }
.related-category { font-size: 11px; text-transform: uppercase; color: var(--primary); display: block; margin-bottom: 6px; }
.related-title { font-size: 14px; color: var(--ink); }

.toc {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin: 24px 0 32px;
}
.toc h2 { margin: 0 0 12px; font-size: 16px; text-transform: uppercase; letter-spacing: 0.5px; }
.toc ul { margin: 0; padding-left: 20px; }
.toc a { color: var(--ink-secondary); }

.faq-item {
    border-bottom: 1px solid var(--hairline);
    padding: 16px 0;
}
.faq-item summary {
    cursor: pointer;
    font-weight: 400;
    font-size: 16px;
    color: var(--ink);
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: '+ '; color: var(--primary); }
.faq-item[open] summary::before { content: '– '; }
.faq-item p { margin-top: 12px; }

.disclaimer-box {
    background: var(--canvas-cream);
    border-radius: 12px;
    padding: 20px 24px;
    font-size: 14px;
    color: var(--ink-secondary);
    margin: 24px 0;
}

form.contact-form { max-width: 520px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; color: var(--ink); }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #a8c3de;
    border-radius: 6px;
    font-family: var(--font);
    font-size: 15px;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-status { margin-top: 12px; font-size: 14px; }
.form-status.success { color: #1a7f43; }
.form-status.loading { color: var(--ink-mute); }

.timeline { list-style: none; padding: 0; margin: 24px 0; border-left: 2px solid var(--hairline); }
.timeline li { padding: 0 0 24px 24px; position: relative; }
.timeline li::before { content: ''; position: absolute; left: -7px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); }
.timeline .t-date { font-size: 12px; color: var(--ink-mute); text-transform: uppercase; }

.cookie-banner {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--ink);
    color: #fff;
    padding: 20px 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
}
.cookie-banner p { color: #fff; margin: 0; font-size: 14px; max-width: 640px; }
.cookie-actions { display: flex; gap: 12px; }
.cookie-actions button {
    border-radius: 9999px;
    padding: 8px 18px;
    border: none;
    cursor: pointer;
    font-size: 14px;
}
#cookie-accept { background: var(--primary); color: #fff; }
#cookie-reject { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.4); }

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 64px 32px;
}
.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto 32px;
}
.footer-col h3 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col p { font-size: 13px; color: var(--ink-mute); }
.footer-bottom {
    max-width: 1100px;
    margin: 0 auto;
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    font-size: 12px;
    color: var(--ink-mute);
}

@media (max-width: 900px) {
    .sidebar { position: fixed; left: -280px; z-index: 40; transition: left .2s ease; background: #fff; }
    .sidebar.open { left: 0; }
    .sidebar-toggle { display: block; }
    .content-area { padding: 80px 20px 40px; }
    .hero-mesh { padding: 40px 24px; }
    .hero-mesh h1 { font-size: 30px; }
    .site-footer { padding: 40px 20px 24px; }
}