:root {
    --bg: #f4f7fb;
    --surface: rgba(255, 255, 255, 0.94);
    --surface-strong: #ffffff;
    --surface-soft: #eef3f9;
    --ink: #16243a;
    --muted: #58708b;
    --line: rgba(22, 36, 58, 0.1);
    --accent: #0f5fa8;
    --accent-strong: #0a4a84;
    --accent-soft: rgba(15, 95, 168, 0.08);
    --success-soft: rgba(38, 122, 88, 0.08);
    --shadow: 0 24px 60px rgba(20, 44, 76, 0.08);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(15, 95, 168, 0.12), transparent 28%),
        radial-gradient(circle at right 12%, rgba(30, 138, 197, 0.09), transparent 24%),
        linear-gradient(180deg, #f9fbfe 0%, var(--bg) 100%);
    color: var(--ink);
    font-family: "Segoe UI", Aptos, Arial, sans-serif;
    line-height: 1.65;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-strong);
}

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

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

.topbar {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.brand {
    align-items: center;
    display: inline-flex;
    gap: 14px;
}

.brand-mark {
    align-items: center;
    background: linear-gradient(135deg, #0f5fa8, #1f86cf);
    border-radius: 18px;
    box-shadow: 0 16px 28px rgba(15, 95, 168, 0.2);
    color: #fff;
    display: inline-flex;
    font-size: 1rem;
    font-weight: 800;
    height: 48px;
    justify-content: center;
    letter-spacing: 0.04em;
    width: 48px;
}

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

.brand-text span {
    color: var(--muted);
    font-size: 0.92rem;
}

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

.nav-links a {
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 600;
    padding: 10px 14px;
}

.nav-links a.active,
.nav-links a:hover {
    background: var(--surface-strong);
    color: var(--ink);
}

.hero,
.card {
    background: var(--surface);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero {
    margin-bottom: 18px;
    padding: 32px;
}

.eyebrow {
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    margin: 0 0 12px;
    text-transform: uppercase;
}

.hero h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2.3rem, 4vw, 4rem);
    line-height: 1.05;
    margin: 0;
}

.hero p.lead {
    color: var(--muted);
    font-size: 1.08rem;
    margin: 16px 0 0;
    max-width: 860px;
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.meta-pill {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.9rem;
    padding: 10px 14px;
}

.layout {
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.85fr);
}

.content-card,
.sidebar-card {
    padding: 28px;
}

.section + .section {
    border-top: 1px solid var(--line);
    margin-top: 24px;
    padding-top: 24px;
}

.section h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.65rem;
    margin: 0 0 10px;
}

.section p {
    margin: 0;
}

.section p + p {
    margin-top: 12px;
}

.list {
    margin: 12px 0 0;
    padding-left: 20px;
}

.list li + li {
    margin-top: 10px;
}

.note,
.callout {
    background: var(--accent-soft);
    border: 1px solid rgba(15, 95, 168, 0.14);
    border-radius: var(--radius-md);
    color: var(--ink);
    margin-top: 16px;
    padding: 16px 18px;
}

.callout-success {
    background: var(--success-soft);
    border-color: rgba(38, 122, 88, 0.16);
}

.sidebar-stack {
    display: grid;
    gap: 14px;
}

.sidebar-box {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 18px;
}

.sidebar-box h3 {
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    margin: 0 0 8px;
    text-transform: uppercase;
}

.sidebar-box p,
.sidebar-box li {
    color: var(--muted);
    margin: 0;
}

.sidebar-box ul {
    margin: 10px 0 0;
    padding-left: 18px;
}

.landing-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 18px;
}

.tile {
    padding: 24px;
}

.tile h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.55rem;
    margin: 0 0 10px;
}

.tile p {
    color: var(--muted);
    margin: 0 0 16px;
}

.button-link {
    background: linear-gradient(135deg, #0f5fa8, #1f86cf);
    border-radius: 999px;
    box-shadow: 0 14px 28px rgba(15, 95, 168, 0.18);
    color: #fff;
    display: inline-flex;
    font-size: 0.94rem;
    font-weight: 700;
    padding: 12px 18px;
}

.button-link.secondary {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    box-shadow: none;
    color: var(--ink);
}

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

.footer {
    color: var(--muted);
    font-size: 0.92rem;
    margin-top: 20px;
    padding: 6px 4px 20px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 10px;
}

.muted {
    color: var(--muted);
}

@media (max-width: 980px) {
    .layout,
    .landing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .site-shell {
        padding: 16px;
    }

    .hero,
    .content-card,
    .sidebar-card,
    .tile {
        padding: 22px;
    }

    .hero h1 {
        font-size: 2.1rem;
    }

    .nav-links {
        width: 100%;
    }
}