:root {
    --bg: #f7fbff;
    --panel: #ffffff;
    --ink: #12324d;
    --ink-soft: #53697d;
    --blue: #0d6db8;
    --blue-dark: #0a4f8d;
    --blue-soft: #ecf5fd;
    --line: #d8e7f3;
    --line-strong: #bfd5e6;
    --shadow: 0 20px 40px rgba(18, 50, 77, 0.08);
    --radius: 22px;
    --radius-small: 16px;
    --alert: #fff4f2;
    --alert-line: #efc4bc;
    --alert-ink: #8c3b2a;
    --font-body: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink);
    background:
        radial-gradient(circle at top right, rgba(13, 109, 184, 0.07), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--blue-dark);
}

p,
li {
    color: var(--ink-soft);
    line-height: 1.8;
}

h1,
h2,
h3,
.hero-panel__title,
.alert-box__title,
.sidebar-card__title {
    margin: 0;
    color: var(--ink);
    font-family: var(--font-display);
    letter-spacing: -0.03em;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header .shell {
    width: min(1380px, calc(100% - 32px));
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(191, 213, 230, 0.8);
}

.site-header__inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) minmax(290px, 360px);
    gap: 18px;
    align-items: center;
    padding: 14px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
}

.brand__mark {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, #0d6db8, #79b7ea);
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand__text {
    display: flex;
    flex-direction: column;
}

.brand__text strong {
    font-size: 1.05rem;
}

.brand__text small {
    color: var(--ink-soft);
    font-size: 0.8rem;
}

.site-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 4px;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
}

.site-nav__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--ink-soft);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

.site-nav__link:hover {
    background: var(--blue-soft);
    color: var(--blue-dark);
    transform: translateY(-1px);
}

.site-nav__link.is-header-hidden {
    display: none !important;
}

.header-search {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: center;
    min-width: 0;
}

.search-field {
    position: relative;
    min-width: 0;
}

.header-search input,
.search-page-form input {
    min-width: 0;
    width: 100%;
    padding: 13px 14px;
    border-radius: 14px;
    border: 1px solid var(--line-strong);
    background: #fff;
    color: var(--ink);
    font: inherit;
}

.header-search button,
.search-page-form button {
    padding: 13px 18px;
    border: 0;
    border-radius: 14px;
    background: var(--blue);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.header-search button:hover,
.search-page-form button:hover {
    background: var(--blue-dark);
    transform: translateY(-1px);
}

.search-suggestions {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    z-index: 30;
    max-height: 420px;
    overflow-y: auto;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 26px 50px rgba(18, 50, 77, 0.14);
}

.search-suggestions[hidden] {
    display: none !important;
}

.search-suggestion,
.search-suggestion-empty {
    display: grid;
    gap: 8px;
    padding: 14px;
    border-radius: 14px;
}

.search-suggestion {
    border-bottom: 1px solid rgba(216, 231, 243, 0.75);
    transition: background 0.2s ease, transform 0.2s ease;
}

.search-suggestion:last-child {
    border-bottom: 0;
}

.search-suggestion:hover {
    background: var(--blue-soft);
    transform: translateY(-1px);
}

.search-suggestion__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.search-suggestion__kicker {
    color: var(--blue);
    font-size: 0.74rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.search-suggestion__match {
    display: inline-flex;
    align-items: center;
    padding: 5px 9px;
    border-radius: 999px;
    background: #eef6fd;
    color: var(--blue-dark);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.search-suggestion h3 {
    font-size: 1.05rem;
}

.search-suggestion p,
.search-suggestion-empty p {
    margin: 0;
    line-height: 1.6;
}

.search-suggestion__path {
    color: var(--ink-soft);
    font-size: 0.86rem;
}

.hero {
    padding: 38px 0 26px;
}

.hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
    gap: 28px;
    align-items: start;
}

.hero__content,
.hero__aside {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) + 4px);
    box-shadow: var(--shadow);
}

.hero__content {
    padding: 32px;
}

.hero__aside {
    padding: 20px;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 18px;
    font-size: 0.92rem;
    color: var(--ink-soft);
}

.breadcrumbs strong {
    color: var(--ink);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--blue-soft);
    color: var(--blue-dark);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.2rem);
    line-height: 1.02;
    margin-bottom: 16px;
}

.hero__intro {
    font-size: 1.05rem;
    margin: 0 0 22px;
    max-width: 760px;
}

.fact-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.fact-list li {
    position: relative;
    padding: 14px 16px 14px 44px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #fff, #f8fbfe);
}

.fact-list li::before {
    content: "";
    position: absolute;
    left: 16px;
    top: 18px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0d6db8, #72b3e7);
    box-shadow: 0 0 0 6px rgba(13, 109, 184, 0.08);
}

.hero-media {
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: #fff;
    margin: 0 0 18px;
    contain: paint;
}

.hero-media img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.hero-media figcaption {
    padding: 12px 14px;
    border-top: 1px solid var(--line);
    font-size: 0.82rem;
    line-height: 1.6;
}

.hero-panel {
    padding: 20px;
    border-radius: var(--radius);
    background: linear-gradient(160deg, #0d6db8, #0b5f9f);
    color: #fff;
}

.hero-panel__title {
    font-size: 1.45rem;
    color: #fff;
    margin-bottom: 10px;
}

.hero-panel p,
.hero-panel a {
    color: rgba(255, 255, 255, 0.92);
}

.hero-panel__link {
    display: inline-block;
    margin-top: 10px;
    font-weight: 600;
}

.page-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    padding-bottom: 52px;
}

.page-main {
    display: grid;
    gap: 22px;
}

.page-main > .page-block,
.page-main > .alert-box,
.page-sidebar,
.site-footer {
    content-visibility: auto;
    contain-intrinsic-size: 1px 900px;
}

.page-sidebar {
    display: grid;
    gap: 18px;
    align-content: start;
    position: sticky;
    top: 106px;
    height: fit-content;
}

.page-block,
.sidebar-card,
.alert-box {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

.section-heading {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
}

.section-heading span,
.alert-box__header span {
    color: var(--blue);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-heading h2 {
    font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.alert-box__title,
.sidebar-card__title {
    font-size: 1.5rem;
}

.bullet-list,
.alert-box ul,
.sidebar-links,
.site-footer ul {
    margin: 0;
    padding-left: 18px;
}

.bullet-list li,
.alert-box li,
.sidebar-links li,
.site-footer li {
    margin-bottom: 10px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 18px;
}

.info-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 100%;
    padding: 22px;
    border-radius: var(--radius-small);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #fff, #f8fbfe);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: #9ac4e7;
    box-shadow: 0 18px 32px rgba(13, 109, 184, 0.1);
}

.info-card__kicker {
    color: var(--blue-dark);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.info-card h3 {
    font-size: 1.45rem;
}

.info-card p {
    margin: 0;
    flex: 1;
}

.info-card__link {
    font-weight: 700;
    color: var(--blue);
}

.alert-box {
    border-color: var(--alert-line);
    background: linear-gradient(180deg, #fff, var(--alert));
}

.alert-box__header {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
}

.alert-box p,
.alert-box li {
    color: var(--alert-ink);
}

.faq-list {
    display: grid;
    gap: 14px;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 22px;
    font-weight: 600;
    color: var(--ink);
}

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

.faq-item[open] summary {
    border-bottom: 1px solid var(--line);
    background: var(--blue-soft);
}

.faq-item div {
    padding: 18px 22px;
}

.sidebar-card__title {
    margin-bottom: 14px;
}

.source-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.source-list li {
    display: grid;
    gap: 6px;
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: #fff;
}

.source-list span {
    color: var(--ink-soft);
    font-size: 0.92rem;
}

.sidebar-card p {
    margin: 0;
}

.sidebar-links a {
    color: var(--ink-soft);
}

.sidebar-links a:hover {
    color: var(--blue-dark);
}

.search-block {
    display: grid;
    gap: 18px;
}

.search-page-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.search-results {
    display: grid;
    gap: 14px;
}

.search-empty,
.search-hit {
    padding: 20px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: #fff;
}

.search-hit {
    display: grid;
    gap: 10px;
}

.search-hit__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.search-hit__meta {
    color: var(--blue);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.search-hit__match {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: #eef6fd;
    color: var(--blue-dark);
    font-size: 0.74rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.search-hit h3 {
    font-size: 1.35rem;
}

.search-hit p {
    margin: 0;
}

.search-hit a {
    font-weight: 700;
}

.sitemap-groups {
    display: grid;
    gap: 14px;
}

.sitemap-group {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    overflow: hidden;
}

.sitemap-group summary {
    list-style: none;
    cursor: pointer;
    padding: 18px 22px;
    display: grid;
    gap: 6px;
}

.sitemap-group summary::-webkit-details-marker {
    display: none;
}

.sitemap-group summary strong {
    color: var(--ink);
}

.sitemap-group summary span {
    color: var(--ink-soft);
}

.sitemap-group__content {
    padding: 0 22px 20px;
}

.sitemap-group__top {
    display: inline-block;
    margin: 6px 0 12px;
    font-weight: 700;
}

.site-footer {
    padding: 32px 0 42px;
    border-top: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(236, 245, 253, 0.55), #fff);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 1.3fr repeat(3, 1fr);
    gap: 22px;
}

.site-footer strong {
    display: inline-block;
    margin-bottom: 10px;
}

.site-footer p,
.site-footer li {
    font-size: 0.95rem;
}

.footer-note,
.footer-woxup {
    color: var(--ink-soft);
}

@media (max-width: 1080px) {
    .site-header .shell {
        width: min(1180px, calc(100% - 24px));
    }

    .site-header__inner {
        grid-template-columns: auto minmax(0, 1fr) minmax(250px, 320px);
    }

    .site-nav {
        justify-content: flex-start;
    }

    .site-nav__link {
        padding-inline: 10px;
    }

    .hero__grid,
    .page-grid,
    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .page-sidebar {
        position: static;
    }

    .hero__aside {
        content-visibility: auto;
        contain-intrinsic-size: 420px;
    }

    .header-search input {
        min-width: 0;
    }
}

@media (max-width: 980px) {
    .site-header__inner {
        grid-template-columns: 1fr;
    }

    .site-nav {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 4px;
    }

    .search-page-form,
    .header-search {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .hero,
    .site-footer {
        padding-top: 24px;
    }

    .hero__content,
    .hero__aside,
    .page-block,
    .sidebar-card,
    .alert-box {
        padding: 22px;
    }
}