:root {
    --navy: #0b3654;
    --navy-deep: #07263c;
    --teal: #1c7c8c;
    --teal-dark: #14606c;
    --sand: #f6f1e7;
    --paper: #fffdf9;
    --ink: #1c2833;
    --muted: #5b6770;
    --line: #d9cfc0;
    --coral: #c45c26;
    --shadow: 0 18px 40px rgba(11, 54, 84, 0.08);
    --radius: 18px;
    --max: 1120px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--sand);
    font-family: "DM Sans", system-ui, sans-serif;
    line-height: 1.65;
}

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

a {
    color: var(--teal-dark);
}

a:hover {
    color: var(--coral);
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 12px;
    background: #fff;
    padding: 8px 12px;
    z-index: 1000;
}

.skip-link:focus {
    left: 12px;
}

.container {
    width: min(var(--max), calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 253, 249, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 78px;
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--navy);
}

.logo-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(160deg, var(--teal), var(--navy));
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-text strong {
    font-family: Fraunces, Georgia, serif;
    font-size: 1.05rem;
}

.logo-text small {
    color: var(--muted);
    font-size: 0.75rem;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--navy);
    margin: 6px 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.site-nav a,
.nav-dropdown-toggle {
    text-decoration: none;
    color: var(--navy);
    font-weight: 600;
    font-size: 0.92rem;
    padding: 8px 10px;
    border-radius: 999px;
    background: none;
    border: 0;
    cursor: pointer;
    font-family: inherit;
}

.site-nav a[aria-current="page"],
.site-nav a:hover,
.nav-dropdown-toggle:hover {
    background: rgba(28, 124, 140, 0.1);
}

.nav-cta {
    background: var(--navy) !important;
    color: #fff !important;
    padding: 8px 14px !important;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 210px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 8px;
    z-index: 20;
}

.nav-dropdown.open .nav-dropdown-menu,
.nav-dropdown:hover .nav-dropdown-menu {
    display: grid;
}

.nav-dropdown-menu a {
    display: block;
}

.hero {
    background:
        radial-gradient(circle at 80% 10%, rgba(28, 124, 140, 0.18), transparent 28%),
        linear-gradient(160deg, var(--navy-deep), var(--navy) 55%, #13445c);
    color: #fff;
    padding: 72px 0 84px;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 48px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 80'%3E%3Cpath fill='%23f6f1e7' d='M0,32 C240,80 480,0 720,24 C960,48 1200,80 1440,24 L1440,80 L0,80 Z'/%3E%3C/svg%3E") center / cover no-repeat;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.kicker {
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.78rem;
    font-weight: 700;
    color: #cde8ed;
    margin: 0 0 12px;
}

h1,
h2,
h3,
.hero h1 {
    font-family: Fraunces, Georgia, serif;
    line-height: 1.18;
    letter-spacing: -0.02em;
}

.hero h1 {
    font-size: clamp(2.1rem, 4vw, 3.5rem);
    margin: 0 0 16px;
}

.hero p.lede {
    font-size: 1.12rem;
    color: #e7f3f6;
    max-width: 42rem;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 700;
}

.btn-primary {
    background: #fff;
    color: var(--navy);
}

.btn-ghost {
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #fff;
}

.hero-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius);
    padding: 22px;
    backdrop-filter: blur(8px);
}

.hero-card h2 {
    margin: 0 0 12px;
    font-size: 1.15rem;
}

.hero-card ol {
    margin: 0;
    padding-left: 18px;
}

.hero-card a {
    color: #fff;
}

.section {
    padding: 64px 0;
}

.section-sand {
    background: var(--sand);
}

.section-paper {
    background: var(--paper);
}

.section-navy {
    background: var(--navy);
    color: #fff;
}

.section h2 {
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    margin: 0 0 12px;
    color: var(--navy);
}

.section-navy h2,
.section-navy a {
    color: #fff;
}

.intro {
    max-width: 46rem;
    color: var(--muted);
    margin-bottom: 32px;
}

.card-grid,
.topic-grid,
.split {
    display: grid;
    gap: 20px;
}

.card-grid {
    grid-template-columns: repeat(3, 1fr);
}

.topic-grid {
    grid-template-columns: repeat(2, 1fr);
}

.split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
}

.card,
.topic-card,
.faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card,
.topic-card {
    padding: 22px;
}

.card h3,
.topic-card h2,
.topic-card h3 {
    margin-top: 0;
    color: var(--navy);
}

.topic-card a {
    font-weight: 700;
    text-decoration: none;
}

.breadcrumbs {
    font-size: 0.9rem;
    color: var(--muted);
    margin: 24px 0 8px;
}

.breadcrumbs a {
    color: var(--teal-dark);
}

.page-hero {
    padding: 28px 0 8px;
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin: 0 0 12px;
    color: var(--navy);
}

.prose {
    max-width: 760px;
}

.prose h2 {
    margin-top: 2rem;
}

.prose ul,
.prose ol {
    padding-left: 1.2rem;
}

.related {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.related a {
    background: rgba(28, 124, 140, 0.1);
    color: var(--navy);
    text-decoration: none;
    border-radius: 999px;
    padding: 8px 12px;
    font-weight: 600;
    font-size: 0.92rem;
}

.faq-item {
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-item button {
    width: 100%;
    text-align: left;
    background: none;
    border: 0;
    padding: 16px 18px;
    font: inherit;
    font-weight: 700;
    color: var(--navy);
    cursor: pointer;
}

.faq-item .faq-body {
    display: none;
    padding: 0 18px 16px;
}

.faq-item.open .faq-body {
    display: block;
}

.site-footer {
    background: var(--navy-deep);
    color: #d7e6ec;
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 28px;
}

.footer-brand {
    font-family: Fraunces, Georgia, serif;
    font-size: 1.4rem;
    color: #fff;
    margin: 0 0 10px;
}

.site-footer h2 {
    font-size: 1rem;
    color: #fff;
    margin: 0 0 10px;
}

.site-footer ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-footer li {
    margin: 0 0 8px;
}

.site-footer a {
    color: #d7e6ec;
    text-decoration: none;
}

.site-footer a:hover {
    color: #fff;
}

.footer-note {
    margin-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 18px;
    font-size: 0.88rem;
}

.stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 28px 0;
}

.stat {
    background: #fff;
    border-radius: var(--radius);
    padding: 18px;
    border: 1px solid var(--line);
}

.stat b {
    display: block;
    font-family: Fraunces, Georgia, serif;
    font-size: 1.4rem;
    color: var(--navy);
}

@media (max-width: 900px) {
    .nav-toggle {
        display: block;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 78px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 12px;
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        align-items: stretch;
    }

    .site-nav.open {
        display: flex;
    }

    .nav-dropdown-menu {
        position: static;
        box-shadow: none;
        border: 0;
        padding: 0 0 0 12px;
    }

    .hero-grid,
    .card-grid,
    .topic-grid,
    .split,
    .footer-grid,
    .stat-row {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 48px;
    }

    .section {
        padding: 40px 0;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
}