:root {
    --page-bg: #f4f7fb;
    --page-card: rgba(255, 255, 255, 0.96);
    --page-border: #d8e1eb;
    --page-text: #17212b;
    --page-muted: #5c6b7a;
    --page-accent: #0b63ce;
    --page-accent-soft: #eaf3ff;
    --page-success: #1b7f48;
    --page-warning-bg: #fff7db;
    --page-warning-border: #f0dc91;
    --page-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1.65;
    color: var(--page-text);
    background:
        radial-gradient(circle at top left, rgba(11, 99, 206, 0.08), transparent 32%),
        linear-gradient(180deg, #f8fbff 0%, var(--page-bg) 100%);
}

a {
    color: inherit;
}

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

.content-page {
    min-height: 100vh;
}

.page-shell {
    max-width: 1120px;
    margin: 0 auto;
    padding: 24px 20px 40px;
}

.page-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 14px 18px;
    border: 1px solid var(--page-border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(10px);
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-link img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.brand-link strong {
    display: block;
    font-size: 1rem;
}

.brand-link span {
    display: block;
    color: var(--page-muted);
    font-size: 0.92rem;
}

.top-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.top-nav a {
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--page-border);
    color: var(--page-muted);
    background: #ffffff;
    transition: all 0.15s ease;
}

.top-nav a:hover,
.top-nav a.active {
    border-color: var(--page-accent);
    color: var(--page-accent);
    background: var(--page-accent-soft);
}

.page-card {
    margin-top: 20px;
    padding: 32px;
    border: 1px solid var(--page-border);
    border-radius: 28px;
    background: var(--page-card);
    box-shadow: var(--page-shadow);
}

.page-hero {
    display: grid;
    gap: 16px;
}

.eyebrow {
    margin: 0;
    color: var(--page-accent);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-hero h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
}

.page-hero p {
    margin: 0;
    max-width: 760px;
    color: var(--page-muted);
    font-size: 1.05rem;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-link:hover {
    transform: translateY(-1px);
}

.btn-link.primary {
    background: var(--page-accent);
    color: #ffffff;
    box-shadow: 0 14px 28px rgba(11, 99, 206, 0.18);
}

.btn-link.secondary {
    background: #ffffff;
    border-color: var(--page-border);
    color: var(--page-text);
}

.page-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 28px;
}

.info-card,
.page-section,
.faq-item,
.note {
    border: 1px solid var(--page-border);
    border-radius: 20px;
    background: #ffffff;
}

.info-card {
    padding: 20px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fbfd 100%);
}

.info-card h2,
.info-card h3,
.page-section h2 {
    margin: 0 0 10px;
}

.info-card p,
.page-section p,
.page-section li,
.faq-item p,
.meta-list {
    color: var(--page-muted);
}

.page-section {
    margin-top: 24px;
    padding: 22px;
}

.page-section ul {
    margin: 12px 0 0;
    padding-left: 20px;
}

.highlight-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--page-accent-soft);
    color: var(--page-accent);
    font-weight: 700;
    font-size: 0.95rem;
}

.pill.success {
    background: rgba(27, 127, 72, 0.1);
    color: var(--page-success);
}

.faq-stack {
    display: grid;
    gap: 14px;
    margin-top: 24px;
}

.faq-item {
    padding: 18px 20px;
}

.faq-item summary {
    cursor: pointer;
    font-weight: 700;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item p {
    margin: 12px 0 0;
}

.note {
    margin-top: 22px;
    padding: 16px 18px;
    background: var(--page-warning-bg);
    border-color: var(--page-warning-border);
    color: #745b00;
}

.meta-list {
    display: grid;
    gap: 8px;
}

.page-footer {
    text-align: center;
    color: var(--page-muted);
    padding: 18px 8px 8px;
    font-size: 0.95rem;
}

.error-page .page-card {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.error-code {
    margin: 0;
    font-size: clamp(4rem, 12vw, 6rem);
    line-height: 1;
    color: var(--page-accent);
}

.error-page .page-hero p {
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 860px) {
    .page-topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .page-shell {
        padding: 16px 14px 28px;
    }

    .page-card {
        padding: 22px;
        border-radius: 22px;
    }

    .page-topbar {
        padding: 14px;
        border-radius: 16px;
    }

    .top-nav {
        width: 100%;
    }

    .top-nav a {
        flex: 1 1 calc(50% - 10px);
        text-align: center;
    }
}