:root {
        color-scheme: dark;
        --night: #102A43;
        --ice-paper: #F2F7FA;
        --frost: #7FD1E8;
        --deep-ink: #0D2136;
        --line: #26445E;
        --soft-blue: #CFE6F2;
        --card-text: #BFD9E8;
        --footer: #7A99B0;
      }

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

      body {
        margin: 0;
        min-height: 100vh;
        min-height: 100svh;
        display: grid;
        place-items: center;
        padding: 24px;
        background: var(--night);
        color: var(--ice-paper);
        font-family: "Karla", sans-serif;
        font-size: 17px;
        font-weight: 400;
        line-height: 1.65;
        text-align: center;
      }

      main {
        width: 100%;
        max-width: 34rem;
        min-width: 0;
      }

      h1, p {
        margin: 0;
      }

      .status {
        margin-bottom: 16px;
        color: var(--frost);
        font-size: 0.8rem;
        letter-spacing: 0.24em;
        text-transform: uppercase;
        font-variant-numeric: tabular-nums;
      }

      .snowflake {
        display: inline-block;
        letter-spacing: 0;
      }

      h1 {
        font-family: "Instrument Serif", serif;
        font-size: clamp(3rem, 11vw, 5rem);
        font-weight: 400;
        line-height: 1;
        letter-spacing: 0.01em;
      }

      .strapline {
        margin-top: 1.2rem;
        margin-bottom: 2.2rem;
        color: var(--soft-blue);
        font-family: "Instrument Serif", serif;
        font-size: clamp(1.3rem, 4vw, 1.7rem);
        font-style: italic;
        font-weight: 400;
        line-height: 1.4;
      }

      .card {
        padding: 26px 24px;
        border: 1px solid var(--line);
        border-radius: 14px;
        background: rgb(242 247 250 / 5%);
      }

      .card p {
        margin-bottom: 1.3rem;
        color: var(--card-text);
        font-size: 0.98rem;
      }

      .button {
        display: inline-block;
        max-width: 100%;
        padding: 0.8em 1.7em;
        border-radius: 999px;
        background: var(--frost);
        color: var(--deep-ink);
        font-weight: 700;
        line-height: 1.4;
        text-decoration: none;
      }

      .button:hover {
        filter: brightness(1.1);
      }

      .button:focus-visible {
        outline: 3px solid var(--ice-paper);
        outline-offset: 5px;
      }

      .content-section {
        margin-top: 2.2rem;
        padding-top: 2.2rem;
        border-top: 1px solid var(--line);
        color: var(--card-text);
      }

      .content-section h2 {
        margin: 0 0 1.2rem;
        color: var(--ice-paper);
        font-family: "Instrument Serif", serif;
        font-size: clamp(1.8rem, 5vw, 2.2rem);
        font-weight: 400;
        line-height: 1.15;
        letter-spacing: 0.01em;
      }

      .content-section > p + p {
        margin-top: 1rem;
      }

      .content-block {
        padding: 22px 24px;
        border: 1px solid var(--line);
        border-radius: 14px;
        background: rgb(242 247 250 / 5%);
      }

      .content-block + .content-block {
        margin-top: 1rem;
      }

      .content-block strong,
      .question strong {
        display: block;
        margin-bottom: 0.4rem;
        color: var(--soft-blue);
        font-weight: 700;
      }

      .question + .question {
        margin-top: 1.4rem;
      }

      footer {
        margin-top: 2.2rem;
        color: var(--footer);
        font-size: 0.85rem;
      }

      @media (prefers-reduced-motion: no-preference) {
        .snowflake {
          animation: drift 7s ease-in-out infinite;
        }

        @keyframes drift {
          0%, 100% { transform: translateY(0) rotate(0deg); }
          50% { transform: translateY(4px) rotate(12deg); }
        }
      }

      [hidden] { display: none !important; }
      a { color: var(--frost); text-underline-offset: 0.2em; }
      a:hover { color: var(--ice-paper); }
      a, button, input, select { -webkit-tap-highlight-color: transparent; }
      a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
        outline: 3px solid var(--ice-paper); outline-offset: 4px;
      }
      button, input, select { font: inherit; }
      button { cursor: pointer; }
      .language-switch { margin: 0 0 2rem; font-size: 0.875rem; }
      .language-switch details { max-width: 100%; }
      .language-switch summary { display: list-item; width: fit-content; max-width: 100%; margin: auto; padding: 0.55rem 1rem; min-height: 44px; border-radius: 999px; border: 1px solid var(--line); background: rgb(242 247 250 / 5%); cursor: pointer; color: var(--ice-paper); }
      .language-switch summary:focus-visible { outline: 3px solid var(--ice-paper); outline-offset: 4px; }
      .language-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.3rem; padding: 0.8rem; margin-top: 0.75rem; border: 1px solid var(--line); border-radius: 14px; background: var(--deep-ink); }
      .language-options a { padding: 0.55rem 0.6rem; min-height: 44px; border: 1px solid transparent; border-radius: 999px; }
      .language-options [aria-current="page"] { border-color: var(--frost); color: var(--ice-paper); }
      main { overflow-wrap: break-word; }
      :lang(zh-Hans) body { font-family: "Karla", "PingFang SC", "Microsoft YaHei", sans-serif; }
      :lang(ja) body { font-family: "Karla", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; }
      :lang(zh-Hans) .content-section h2, :lang(ja) .content-section h2 { line-height: 1.4; }
      .section-intro { margin-bottom: 1.5rem; }
      .archive-photo { margin: 1.5rem 0 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: rgb(242 247 250 / 5%); }
      .archive-photo img { display: block; width: 100%; height: auto; }
      .archive-photo.portrait img { max-height: 33rem; object-fit: contain; background: var(--deep-ink); }
      figcaption { padding: 1.2rem 1.4rem; }
      figcaption strong { display: block; color: var(--soft-blue); margin-bottom: 0.4rem; }
      .source { font-size: 0.875rem; color: var(--card-text); line-height: 1.6; margin-top: 0.7rem; }
      .source a { overflow-wrap: anywhere; }
      .dated { font-size: 0.875rem; color: var(--soft-blue); margin: 1rem 0; }
      video { display: block; width: 100%; height: auto; aspect-ratio: 5 / 4; background: var(--deep-ink); border: 1px solid var(--line); border-radius: 14px; }
      .video-text { padding-top: 1rem; }
      .hero-film { margin-top: 0; padding-top: 0; border-top: 0; margin-bottom: 2.2rem; }
      .hero-film h2 { font-size: clamp(1.5rem, 4vw, 1.8rem); margin-bottom: 0.85rem; }
      .hero-film video { max-height: min(23rem, 42svh); object-fit: contain; }
      .film-sound { margin-top: 0.8rem; }
      .video-text h3 { margin: 1rem 0 0.4rem; font-size: 1rem; color: var(--soft-blue); }
      .dictionary { margin: 1.5rem 0 0; }
      .dictionary > div { padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
      .dictionary > div:last-child { border-bottom: 0; }
      .dictionary dt { color: var(--soft-blue); font-weight: 700; font-size: 1.1rem; }
      .dictionary dd { margin: 0.35rem 0 0; }
      .packing-list { list-style: none; padding: 0; margin: 1.5rem 0 0; text-align: left; }
      .packing-list li + li { margin-top: 0.65rem; }
      .packing-list label { display: flex; gap: 0.85rem; align-items: start; padding: 0.85rem 1rem; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; background: rgb(242 247 250 / 5%); }
      .packing-list input { flex: 0 0 auto; margin-top: 0.35rem; width: 1.2rem; height: 1.2rem; accent-color: var(--frost); }
      .packing-list strong { display: block; color: var(--soft-blue); }
      .packing-list input:checked + span strong { text-decoration: line-through; }
      .packing-list label:has(input:checked) { border-color: var(--frost); }
      .packing-list small { display: block; font-size: 0.9rem; }
      .utility-button { color: var(--frost); border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 0.55rem 1.1rem; min-height: 44px; }
      .utility-button:hover { border-color: var(--frost); }
      .progress { min-height: 1.65em; margin: 1rem 0; color: var(--soft-blue); }
      .club-filters { margin-top: 1.5rem; text-align: left; }
      .club-filters label { display: block; margin: 0.8rem 0 0.3rem; color: var(--soft-blue); }
      .club-filters input, .club-filters select { display: block; width: 100%; min-width: 0; padding: 0.7rem 0.8rem; color: var(--ice-paper); background: var(--deep-ink); border: 1px solid var(--line); border-radius: 8px; }
      .club-filters input::placeholder { color: var(--card-text); }
      .club-filters button { margin-top: 1rem; }
      .club-list { list-style: none; padding: 0; margin: 1.25rem 0; }
      .club-list li { padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
      .club-list h3 { font-size: 1.05rem; margin: 0 0 0.2rem; font-weight: 700; }
      .club-place { font-size: 0.9rem; color: var(--soft-blue); margin-bottom: 0.4rem; }
      .club-list p { margin-bottom: 0.35rem; }
      .notice { padding: 1rem 1.2rem; background: rgb(242 247 250 / 5%); border: 1px solid var(--line); border-radius: 14px; }
      .card .signup-note { margin: 1rem 0 0; font-size: 0.85rem; }
      .eyebrow { color: var(--frost); font-size: 0.8rem; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 0.8rem; }
      .winter-story > .source + p { margin-top: 1.4rem; }
      .seasonal-prompt h3 { margin: 0 0 0.5rem; font-size: 1rem; color: var(--soft-blue); }
      .seasonal-prompt p + p { margin-top: 0.85rem; }
      @media (max-width: 380px) {
        .card, .content-block { padding-left: 18px; padding-right: 18px; }
        .status { letter-spacing: 0.15em; }
        figcaption { padding: 1rem; }
      }

      .site-shell { width: 100%; max-width: 34rem; min-width: 0; }
      .site-header { margin-bottom: 1.8rem; }
      .header-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.8rem; }
      .page-home .header-tools { justify-content: center; }
      .wordmark { font: 400 2rem/1.1 "Instrument Serif", serif; color: var(--ice-paper); text-decoration: none; }
      .wordmark, .brand-home { display: inline-flex; align-items: center; gap: 0.65rem; flex-shrink: 0; }
      .header-logo { width: 48px; height: 48px; border-radius: 10px; display: block; }
      .home-promise { margin: 1.3rem 0 1.5rem; color: var(--soft-blue); font-size: 1.08rem; }
      .newsletter { margin: 1.5rem 0 2.2rem; }
      .newsletter h2 { margin: 0; font-family: "Instrument Serif", serif; font-weight: 400; font-size: 1.75rem; line-height: 1.2; }
      .newsletter .signup-note { margin-top: 0.8rem; }
      .newsletter form { display: grid; text-align: left; gap: 0.6rem; margin-top: 1.2rem; }
      .newsletter input, .newsletter select { width: 100%; min-height: 44px; padding: 0.7em; border: 1px solid var(--line); border-radius: 8px; background: var(--deep-ink); color: var(--ice-paper); font: inherit; }
      .newsletter .button { justify-self: center; margin-top: 0.8rem; border: 0; cursor: pointer; }
      .newsletter .button:disabled { opacity: 0.65; cursor: wait; }
      .newsletter form[hidden] { display: none; }
      .newsletter-status { margin-top: 1rem; color: var(--ice-paper); }
      .newsletter-status:target { display: block; }
      .newsletter-status.is-error { color: var(--frost); }
      .social-links { margin-top: 1rem; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0.45rem; }
      .social-links a { display: inline-flex; align-items: center; min-height: 44px; }
      .region-links { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; }
      .region-links a { display: block; padding: 0.65rem; border: 1px solid var(--line); border-radius: 8px; }
      .region-clubs { list-style: none; padding: 0; }
      .region-clubs li { margin: 1.2rem 0; padding: 1.2rem; border: 1px solid var(--line); border-radius: 14px; }
      @media (max-width: 360px) { .region-links { grid-template-columns: 1fr; } }
      .site-header .language-switch { margin: 0; flex: 1 1 12rem; max-width: 100%; min-width: 0; }
      .site-header .language-switch summary { margin-left: auto; margin-right: 0; }
      .page-home .language-switch summary { margin-left: auto; margin-right: auto; }
      .page-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.2rem; margin-top: 1rem; padding-bottom: 0.85rem; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
      .page-nav a { display: flex; align-items: center; justify-content: center; min-height: 44px; max-width: 100%; padding: 0.5rem 0.65rem; border: 1px solid transparent; border-radius: 999px; line-height: 1.3; text-decoration: none; overflow-wrap: anywhere; }
      .page-nav a[aria-current="page"] { border-color: var(--line); background: rgb(242 247 250 / 5%); color: var(--ice-paper); }
      .page-nav a[aria-current="true"] { border-color: var(--line); background: rgb(242 247 250 / 5%); color: var(--ice-paper); }
      .status a { color: inherit; text-decoration: none; }
      .status a:hover { text-decoration: underline; }
      body:not(.page-home) main h1 { margin: 0 0 1.2rem; font-size: clamp(2.25rem, 7vw, 3.1rem); line-height: 1.15; }
      body:not(.page-home) main > .content-section:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
      .explore { margin-top: 2.2rem; }
      .explore h2 { margin: 0 0 1.2rem; font: 400 clamp(1.8rem, 5vw, 2.2rem)/1.15 "Instrument Serif", serif; }
      .explore-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; }
      .explore-card { display: flex; flex-direction: column; justify-content: center; gap: 0.6rem; padding: 1.2rem 0.9rem; border: 1px solid var(--line); border-radius: 14px; background: rgb(242 247 250 / 5%); text-decoration: none; min-width: 0; }
      .explore-card:hover { border-color: var(--frost); }
      .explore-card strong { font: 400 1.5rem/1.2 "Instrument Serif", serif; color: var(--ice-paper); }
      .explore-card span { font-size: 0.85rem; line-height: 1.5; color: var(--card-text); }
      .back-home { margin-top: 2rem; }
      .skip-link { position: absolute; top: 0; left: 50%; transform: translate(-50%, -150%); padding: 0.75rem 1rem; color: var(--deep-ink); background: var(--ice-paper); border-radius: 0 0 10px 10px; z-index: 5; }
      .skip-link:focus { transform: translate(-50%, 0); }
      a.button:hover { color: var(--deep-ink); }
      @media (max-width: 380px) { .explore-grid { grid-template-columns: 1fr; } }

      .article-header { margin: 1.6rem 0; }
      .article-header .eyebrow { color: var(--frost); }
      .article-lead { font-size: 1.1rem; color: var(--soft-blue); }
      .page-article article > p + p { margin-top: 1rem; }
      .page-article article { color: var(--card-text); }
      .page-article h1 { color: var(--ice-paper); }
      .page-article h3 { margin: 1.4rem 0 0.5rem; color: var(--soft-blue); font-size: 1rem; }
      .breadcrumbs { font-size: 0.85rem; color: var(--footer); }
      .article-jumps { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem; margin: 1.5rem 0; }
      .article-jumps a { padding: 0.5rem 0.8rem; min-height: 44px; border: 1px solid var(--line); border-radius: 999px; font-size: 0.9rem; }
      .results-wrap { overflow-x: auto; margin-top: 1rem; border: 1px solid var(--line); border-radius: 14px; }
      .results-wrap:focus-visible { outline: 3px solid var(--ice-paper); outline-offset: 4px; }
      .results-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 0.95rem; }
      .results-table caption { padding: 1rem; color: var(--soft-blue); font-size: 0.85rem; text-align: left; }
      .results-table th, .results-table td { padding: 0.9rem 1rem; vertical-align: top; border-top: 1px solid var(--line); }
      .results-table th:first-child { width: 35%; }
      .results-table thead { color: var(--ice-paper); background: rgb(242 247 250 / 5%); }
      .results-table tbody th { font-weight: 400; }
      .results-table tbody tr:nth-child(even) { background: rgb(242 247 250 / 3%); }
      .story-timeline { list-style: none; text-align: left; padding: 0 0 0 1.2rem; margin: 1.5rem 0 0 0.35rem; border-left: 1px solid var(--line); }
      .story-timeline li { position: relative; padding: 0 0 1.3rem 0.5rem; }
      .story-timeline li::before { content: ''; position: absolute; left: -1.5rem; top: 0.55rem; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--frost); }
      .story-timeline li h3 { margin-top: 0; font-size: 1.2rem; }
      .story-timeline strong { color: var(--soft-blue); }
      .story-timeline li:last-child { padding-bottom: 0; }
      .example-list, .winner-list { text-align: left; padding-left: 1.25rem; }
      .example-list li + li, .winner-list li + li { margin-top: 0.7rem; }
      .winner-list strong { color: var(--frost); margin-right: 0.5rem; }
      .article-cards { display: grid; gap: 0.8rem; margin: 1.5rem 0; }
      .related-reading { font-size: 0.95rem; }
      .language-note { margin-top: 0.8rem; font-size: 0.85rem; color: var(--card-text); }
      :target { scroll-margin-top: 1rem; }
      @media (max-width: 380px) { .results-table th, .results-table td { padding: 0.75rem 0.6rem; } }

      .article-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; margin: 1.6rem 0; }
      .article-facts > div { padding: 1rem 0.7rem; border: 1px solid var(--line); border-radius: 14px; background: rgb(242 247 250 / 5%); }
      .article-facts dt { color: var(--footer); font-size: 0.8rem; }
      .article-facts dd { margin: 0.3rem 0 0; color: var(--soft-blue); font-weight: 700; }
      .archive-film { margin: 2rem 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: rgb(242 247 250 / 5%); }
      .film-stage { background: var(--deep-ink); }
      .film-placeholder { display: grid; justify-items: center; gap: 0.8rem; padding: 2rem 1.25rem; }
      .film-symbol { display: grid; place-items: center; width: 3rem; height: 3rem; border: 1px solid var(--frost); border-radius: 50%; color: var(--frost); padding-left: 0.2rem; }
      .film-placeholder .eyebrow { margin: 0; }
      .film-title { font: 400 1.8rem/1.2 "Instrument Serif", serif; color: var(--ice-paper); }
      .film-stage iframe { display: block; width: 100%; aspect-ratio: 4 / 3; border: 0; }
      .archive-film video { border: 0; border-radius: 0; aspect-ratio: auto; }
      .archive-film [data-close-film] { margin-top: 0.8rem; }
      .photo-pause { margin: 1.8rem 0 0; color: var(--soft-blue); font: italic 1.45rem/1.4 "Instrument Serif", serif; }
      .article-sources { text-align: left; padding-left: 1.2rem; font-size: 0.9rem; }
      .article-sources li + li { margin-top: 0.6rem; }

      .ice-report { padding: 1.3rem; border: 1px solid var(--line); border-radius: 14px; background: rgb(242 247 250 / 5%); }
      .ice-report strong { color: var(--soft-blue); }
      .ice-report p + p { margin-top: 1rem; }
      #ijsdikte-vandaag h3 { margin: 1.5rem 0 0.6rem; color: var(--soft-blue); font-size: 1rem; }
      .club-facts { margin: 1.2rem 0; text-align: left; }
      .club-facts > div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
      .club-facts dt { color: var(--soft-blue); font-weight: 700; }
      .club-facts dd { margin: 0.25rem 0 0; }
      .practical-list { padding-left: 1.3rem; text-align: left; margin-top: 1.4rem; }
      .practical-list li + li { margin-top: 0.8rem; }
      .page-article .content-block h3 { margin-top: 0; }