/* Design tokens: one place for colours, spacing, radius, shadow and type. Every
   component pulls from these variables (var(--...)), so the whole site shares one
   look and a change here ripples everywhere. Palette follows the school's own
   colours (IGMH): its blue for the header, links and headings, its green as the
   accent. No external anything -- just CSS custom properties. */
:root {
    /* Brand blue and two derived shades (darker for hover, lighter for tints). This
       is the IGMH blue (#328fc6) darkened so it stays legible as link/heading text
       on white; the header keeps the brighter original via --color-header below. */
    --color-brand: #2b6f9c;
    --color-brand-dark: #1f5477;
    --color-brand-tint: #eaf3f9;

    /* The header bar's background: the IGMH blue at full strength. Its own token
       (not --color-brand) both because it only ever carries white text (so it needs
       no darkening) and because it must stay a deep blue in dark mode, where
       --color-brand is lightened for text/links. */
    --color-header: #328fc6;

    /* Text and menu states on the header. White text, and two translucent white
       washes for the menu pills: they lighten whatever part of the gradient sits
       behind a link, so one value works from the blue end to the green end. The
       active pill is the stronger one, so "where am I" outranks "where is the
       mouse". */
    --color-on-header: #fff;
    --color-nav-hover: rgba(255, 255, 255, 0.12);
    --color-nav-active: rgba(255, 255, 255, 0.2);

    /* Footer: a dark brand blue, so the page visibly ends there. Light text in two
       steps (headings and the name brighter, links softer); both stay >= 7:1 on the
       band. The border token is a faint white line for the copyright rule. */
    --color-footer: #1a3d57;
    --color-on-footer: #f1f5f9;
    --color-on-footer-soft: #c5d3df;
    --color-footer-border: rgba(255, 255, 255, 0.15);

    /* Accent for highlights (active nav, event dates, call-outs): the IGMH green.
       The -dark shade is darkened enough to keep small text and the FAQ marker
       legible on a white card. */
    --color-accent: #6db863;
    --color-accent-dark: #4f9247;

    /* A whisper of the green for calm background areas (info boxes, highlighted
       rows). Light enough that body text keeps its full contrast on top. */
    --color-accent-tint: #eef7ec;

    /* Warm yellow for the rare thing that must catch the eye (a "new" marker, a
       deadline). Background only, never text -- yellow text is unreadable on white.
       Used sparingly: if everything is highlighted, nothing is. */
    --color-highlight: #fdf0c2;

    /* Brand gradient for large surfaces (hero, banner): the header blue flowing into
       the IGMH green. The green end is a deep shade (#3a7a3e, 5.2:1 with white),
       not --color-accent, so white text stays readable across the whole sweep. */
    --gradient-brand: linear-gradient(135deg, var(--color-header) 0%, #3a7a3e 100%);

    /* Buttons in editor content (a lone mail link, links in an "aufruf" box): a
       filled blue with white text. Own tokens, not --color-brand, because in dark
       mode --color-brand turns light for link text, and white on that light blue
       would fail WCAG AA. Both shades carry white at >= 5.5:1. */
    --color-button: #2b6f9c;
    --color-button-hover: #1f5477;
    --color-on-button: #fff;

    /* The light button for dark surfaces (the brand gradient of the home hero),
       where a filled blue button would melt into the blue end. Dark blue text on
       white, 8:1; the hover is a faint blue tint, so the button still reads as one. */
    --color-button-light: #fff;
    --color-button-light-hover: #eaf3f9;
    --color-on-button-light: #1f5477;

    /* Keyboard focus ring (:focus-visible). Its own token so it can stay strong on
       the light page (dark blue, 8:1 on white) and flip to a light blue on the dark
       one; on the gradient the hero switches it to white. */
    --color-focus: #1f5477;

    /* Headings. Its own token (not --color-brand) so headings and links can differ:
       in dark mode headings become a soft white while links keep the brand blue. */
    --color-heading: #2b6f9c;

    /* Text and surfaces. */
    --color-text: #222;
    --color-text-soft: #555;
    --color-bg: #fff;              /* cards / content surface */
    --color-page: #f4f6f4;         /* near-neutral page background with a faint cool
                                      tint, so white cards lift off it without the old
                                      warm beige clashing with the cool blue */
    --color-surface: #fafafa;
    --color-border: #e0e0e0;

    /* Spacing scale -- use these instead of ad-hoc rem values so gaps stay even. */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;

    /* Rounded corners and a soft shadow for cards, matching the friendly tone. */
    --radius: 12px;
    --radius-sm: 6px;
    --radius-lg: 20px;             /* large surfaces (hero, banner) look stiff with
                                      the card radius at their size */
    --shadow: 0 1px 3px rgba(31, 58, 95, 0.08), 0 4px 12px rgba(31, 58, 95, 0.06);
    --shadow-hover: 0 2px 6px rgba(31, 58, 95, 0.12), 0 8px 20px rgba(31, 58, 95, 0.1);
    --shadow-lg: 0 4px 12px rgba(31, 58, 95, 0.1), 0 16px 40px rgba(31, 58, 95, 0.12);

    /* One transition speed for hovers/focus across the site. */
    --transition: 0.15s ease;

    /* Width of the page frame (header, content, footer). Wide enough for card grids
       side by side; running text does not follow it -- paragraphs keep their own
       reading width (see p below), so lines never get uncomfortably long. */
    --content-width: 72rem;

    /* Type. The site font is self-hosted (see @font-face below); the system stack
       stays behind it, so text shows at once and only swaps when Nunito arrives. */
    --font-family: "Nunito", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* Type scale. h1 and h2 grow fluidly with the viewport (clamp: minimum, preferred
       in vw, maximum) instead of jumping at a breakpoint, so a long German compound
       word in a heading still fits a phone screen. Smaller sizes stay fixed: the
       difference would not be visible. Body text sits a touch above the 1rem default
       because Nunito's rounded letters read small. */
    --font-size-h1: clamp(2rem, 1.6rem + 1.6vw, 2.75rem);
    --font-size-h2: clamp(1.5rem, 1.35rem + 0.6vw, 1.75rem);
    --font-size-h3: 1.2rem;
    --font-size-body: 1.0625rem;

    /* Headings: extra-bold for a friendly, confident lead, pulled slightly tighter
       because heavy letters at large sizes otherwise look spaced out. */
    --font-weight-heading: 800;
    --letter-spacing-heading: -0.015em;
}

/* Dark mode: follows the visitor's OS setting automatically (prefers-color-scheme).
   No toggle and no JavaScript -- the browser applies this when the operating system
   is set to dark. Only the colour tokens change; layout, spacing, radius and type
   stay put, so the whole site adapts from this one block. Choices: a deep blue-grey
   rather than pure black; cards a touch lighter than the page so they still lift off
   it; the accent nudged brighter so it doesn't glare; shadows darkened since soft
   light shadows are invisible on a dark background. The header keeps its deep blue. */
@media (prefers-color-scheme: dark) {
    :root {
        --color-brand: #7cc0ec;        /* the IGMH blue lightened: headings/links need
                                          to stay bright enough to read on the dark
                                          page background, not just on the card */
        --color-brand-dark: #a3d5f4;   /* hover goes lighter, not darker, on dark */
        --color-brand-tint: #223038;

        --color-header: #266f9c;       /* the IGMH blue eased down, to sit calmly on dark */

        --color-footer: #10202e;       /* a deep night blue: darker than the page, so
                                          the band still reads as the page's end */
        --color-on-footer: #c9ced6;    /* the heading tone, 10:1 on the band */
        --color-on-footer-soft: #a2a8b2; /* the body text tone, 6.9:1 on the band */
        --color-footer-border: rgba(255, 255, 255, 0.1);

        --color-accent: #86c97d;       /* the IGMH green nudged brighter for dark */
        --color-accent-dark: #86c97d;  /* no darkening needed on a dark surface */
        --color-accent-tint: #24332a;  /* a dark green-grey: tinted, but the soft
                                          body text still reads at 5.5:1 */

        --color-highlight: #3a3220;    /* the warm yellow as a deep amber -- a bright
                                          yellow would glare on the dark page */

        --gradient-brand: linear-gradient(135deg, var(--color-header) 0%, #2f6b33 100%);

        --color-button: #266f9c;       /* the header blue: deep enough for white
                                          text, calm on the dark page */
        --color-button-hover: #1f5477;

        --color-button-light: #e8eef3; /* white eased down, so it does not glare
                                          on the darker gradient */
        --color-button-light-hover: #d3dee6;
        --color-on-button-light: #1a3d57; /* 9:1 on the eased white */

        --color-focus: #a3d5f4;        /* light blue: a dark ring would vanish here */

        --color-heading: #c9ced6;      /* soft white, kept a step brighter than the
                                          body text so headings still lead the page */

        --color-text: #a2a8b2;         /* eased right down to the soft tone -- full
                                          near-white reads as glare on the dark page */
        --color-text-soft: #a2a8b2;
        --color-bg: #222834;           /* cards / content surface */
        --color-page: #171b22;         /* page background, darker than the cards */
        --color-surface: #1c212a;
        --color-border: #333b47;

        --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
        --shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.5), 0 8px 20px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.5), 0 16px 40px rgba(0, 0, 0, 0.45);
    }
}

/* Nunito, served from our own wwwroot -- never from Google Fonts, which would hand
   every visitor's IP to Google (see docs/recht.md). One variable file covers every
   weight from 400 to 800, so body, bold and headings cost a single ~36 KB request
   instead of three static files. Subset to Latin incl. German and the common
   European names (ä ö ü ß é ç ğ ş ł ...), € and German quotes; anything outside falls
   back to the system font. No italic file: Markdown emphasis is rare, so the browser
   slanting the upright face is worth the saved request. font-display: swap shows the
   system font immediately and swaps once the file is there -- text never waits.
   License: SIL OFL 1.1, see fonts/OFL.txt. */
@font-face {
    font-family: "Nunito";
    src: url("fonts/nunito-latin-wght.woff2") format("woff2");
    font-weight: 400 800;
    font-style: normal;
    font-display: swap;
}

/* Base styles. */
html {
    font-family: var(--font-family);
    line-height: 1.65;
    color: var(--color-text);
    /* Tell the browser we support both schemes, so form controls, scrollbars and
       the native <details> marker follow the OS setting instead of staying light. */
    color-scheme: light dark;
    /* Smooth-scroll for in-page anchors, with room so headings clear the sticky
       header instead of hiding under it. */
    scroll-padding-top: 5rem;
}

body {
    margin: 0;
    /* A soft tinted page background so white cards/content lift off it. */
    background: var(--color-page);
    color: var(--color-text);
    font-size: var(--font-size-body);
    /* Full-width bands inside the content column (the home hero) reach the window
       edges with 100vw, which includes the vertical scrollbar and would add a few
       pixels of sideways scroll. clip, not hidden: hidden would make body a scroll
       container and stop the sticky header from sticking. */
    overflow-x: clip;
}

a {
    color: var(--color-brand);
    text-underline-offset: 2px;
    transition: color var(--transition);
}

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

/* Headings: clear hierarchy and a touch more air above them than below, so
   sections read as groups. */
h1, h2, h3, h4 {
    line-height: 1.25;
    color: var(--color-heading);
    font-weight: var(--font-weight-heading);
    letter-spacing: var(--letter-spacing-heading);
    margin: var(--space-5) 0 var(--space-3);
}

h1 {
    font-size: var(--font-size-h1);
    line-height: 1.15;   /* big type needs less leading, or wrapped lines drift apart */
    margin-top: 0;   /* the first heading on a page needs no gap above */
}

h2 {
    font-size: var(--font-size-h2);
}

h3 {
    font-size: var(--font-size-h3);
}

/* h4 gets its own size so it stays a step below h3 instead of falling back to the
   browser default, which can render as large as (or larger than) a small h3. Body
   size: below that it would read smaller than the text it heads; the extra-bold
   weight alone sets it apart. */
h4 {
    font-size: var(--font-size-body);
}

/* Comfortable paragraph rhythm and a capped line length for readability. */
p {
    margin: 0 0 var(--space-3);
    max-width: 42rem;
}

h1:focus {
    outline: none;
}

/* Icons (Shared/Icon.razor) sit inline next to text: nudged down to line up with the
   letters instead of the baseline, and never squeezed when they share a flex row
   with a long label. */
.icon {
    flex-shrink: 0;
    vertical-align: -0.15em;
}

/* Buttons for links that are an action (the hero's "Kommende Termine", "Kontakt
   aufnehmen"). Global, because the look must be the same wherever a component puts
   one. Primary = filled, secondary = outlined; both carry the same 2px border, so a
   primary and a secondary side by side are exactly the same height. Hover changes
   colour and shadow only -- nothing moves (hover movement was removed on purpose). */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 700;
    line-height: 1.4;
    text-decoration: none;
    transition: background-color var(--transition), box-shadow var(--transition),
                color var(--transition), border-color var(--transition);
}

.btn:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--color-button);
    border-color: var(--color-button);
    color: var(--color-on-button);
}

.btn-primary:hover {
    background: var(--color-button-hover);
    border-color: var(--color-button-hover);
    color: var(--color-on-button);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    border-color: var(--color-button);
    color: var(--color-brand);
}

.btn-secondary:hover {
    background: var(--color-brand-tint);
    color: var(--color-brand);
}

/* Header navigation links. These live here (global), not in MainLayout.razor.css:
   NavLink renders plain <a> elements without a scoped-CSS attribute, so a scoped
   ".main-nav a" rule would not match them -- the links would fall back to the
   global link colour (dark blue) and become unreadable on the blue header bar.
   Every link is a pill with the same padding whether active or not, so switching
   pages never shifts the row. Full white, not a softened white: the blue end of
   the gradient already leaves little contrast headroom. */
.main-nav a {
    position: relative;
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    color: var(--color-on-header);
    text-decoration: none;
    transition: background-color var(--transition);
}

.main-nav a:hover {
    color: var(--color-on-header);
    background: var(--color-nav-hover);
}

/* NavLink adds .active to the current route's link: a stronger pill plus a short
   green stroke under the text mark where the visitor is. The stroke is drawn by
   ::after, not a border, so it follows the text width inside the rounded pill. */
.main-nav a.active {
    background: var(--color-nav-active);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    left: var(--space-3);
    right: var(--space-3);
    bottom: 0.2rem;
    height: 2px;
    border-radius: 1px;
    background: var(--color-accent);
}

/* Mobile: the stacked links in the open menu become full-width rows with a
   rounded highlight instead of pills, and the green stroke shrinks to a short
   mark at the start, so a long row does not get a long line. Same global
   placement, same NavLink reason as above. */
@media (max-width: 40rem) {
    .main-nav a {
        padding: 0.6rem var(--space-3);
        border-radius: var(--radius-sm);
    }

    .main-nav a.active::after {
        right: auto;
        width: 1.5rem;
    }
}

/* --- Shared card styles for content lists --------------------------------------
   Posts, events and FAQs appear both on their own page (PostList/EventList/
   FaqList) AND embedded on the home page (the *Embed components), with the same
   class names. These rules live here (global) so both places share one look
   instead of duplicating the CSS per component. The card look: a white surface
   lifted off the tinted page background with a soft shadow and a gentle hover. */

.post-list,
.event-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--space-3);
}

.post-list li,
.event-list li {
    background: var(--color-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}

.post-list li:hover,
.event-list li:hover {
    box-shadow: var(--shadow-hover);
}

/* The whole card is one link. The <a> fills the card and carries the padding (so
   the entire surface is clickable, not just the text), and resets link colour and
   underline so the content inside -- title, date, location -- keeps its own look. */
.card-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: inherit;
    text-decoration: none;
}

/* FAQ topics: each is a collapsible card. Its summary is the topic heading; open it
   to reveal the optional intro and the questions (themselves collapsible .faq-item
   cards). The topic marker is a rotating triangle, distinct from the +/- on the
   questions nested inside, so the two accordion levels read apart. */
.faq-topic {
    background: var(--color-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-3);
    transition: box-shadow var(--transition);
}

.faq-topic:hover {
    box-shadow: var(--shadow-hover);
}

.faq-topic > summary {
    cursor: pointer;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-brand);
    list-style: none;
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
}

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

.faq-topic > summary::before {
    content: "▸";
    color: var(--color-accent-dark);
    font-size: 0.9rem;
}

.faq-topic[open] > summary::before {
    content: "▾";
}

/* Space the questions off the topic heading once the topic is open. */
.faq-topic[open] > .faq-item:first-of-type {
    margin-top: var(--space-3);
}

.faq-topic-intro {
    margin-top: var(--space-2);
    color: var(--color-text-soft);
}

/* Post and event cards are built the same way, so they read as one style on the
   home page where both appear: the title leads in the brand colour (the whole card
   is the link, so the title itself is plain text), the date sits quietly beneath. */
.post-title,
.event-title {
    display: block;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-brand);
}

/* The date's small, softened look comes from PostDate.razor.css / EventDate; here
   only the shared spacing: nudge it down from the title above. */
.post-list time,
.event-list time {
    margin-top: var(--space-1);
}

/* The location sits on its own quiet line beneath the date. */
.event-location {
    display: block;
    margin-top: var(--space-1);
    color: var(--color-text-soft);
}

.event-note {
    margin: var(--space-2) 0 0;
    color: var(--color-text);
}

/* Past events (only on the full events page): same cards, quieter and flat. */
.event-list-past li {
    box-shadow: none;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.event-list-past li:hover {
    box-shadow: none;
}

.event-list-past time {
    color: var(--color-text-soft);
    font-weight: 400;
}

.event-list-past .event-title {
    font-weight: 400;
    color: var(--color-text-soft);
}

/* FAQ: each question is an expandable card with an accent +/– marker. */
.faq-item {
    background: var(--color-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-3);
    transition: box-shadow var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-hover);
}

.faq-item summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-brand);
    list-style: none;
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
}

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

.faq-item summary::before {
    content: "+";
    color: var(--color-accent-dark);
    font-weight: 700;
    font-size: 1.2rem;
    line-height: 1;
}

.faq-item[open] summary::before {
    content: "–";
}

.faq-answer {
    padding-top: var(--space-2);
    color: var(--color-text);
}

/* --- Editor content (.markdown-body) -------------------------------------------
   Everything the editors write in PocketBase (page bodies, posts, FAQ answers, the
   intros on /posts and /events) is Markdown rendered by Shared/Markdown.cs and
   wrapped in .markdown-body. Editors cannot add classes or HTML, so the look of
   their text comes entirely from these rules. Every selector is scoped to
   .markdown-body so nothing here leaks into the site's own components, and the
   rules must hold for any Markdown an editor might type, including none at all. */

/* The line icons the content styles need, as data URIs: no request, no foreign
   host. Same Lucide paths as Shared/IconSet.cs (license notice there); CSS cannot
   reach that C# set, so these are copies. Drawn in black and used as a mask over
   background-color: currentColor, so each icon takes the colour of its text --
   dark mode included -- just like the inline-SVG <Icon> component. */
.markdown-body {
    --icon-external-link: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M15 3h6v6'/%3E%3Cpath d='M10 14 21 3'/%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3C/svg%3E");
    --icon-file-text: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 22a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h8a2.4 2.4 0 0 1 1.704.706l3.588 3.588A2.4 2.4 0 0 1 20 8v12a2 2 0 0 1-2 2z'/%3E%3Cpath d='M14 2v5a1 1 0 0 0 1 1h5'/%3E%3Cpath d='M10 9H8'/%3E%3Cpath d='M16 13H8'/%3E%3Cpath d='M16 17H8'/%3E%3C/svg%3E");
    --icon-info: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4'/%3E%3Cpath d='M12 8h.01'/%3E%3C/svg%3E");
    --icon-mail: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m22 7-8.991 5.727a2 2 0 0 1-2.009 0L2 7'/%3E%3Crect x='2' y='4' width='20' height='16' rx='2'/%3E%3C/svg%3E");
}

/* A block's last element needs no gap below: the surrounding card or page already
   spaces it, and a trailing margin makes boxes look bottom-heavy. */
.markdown-body > :last-child,
.markdown-body div > :last-child {
    margin-bottom: 0;
}

/* Section headings get a short green bar above them. The bodies are mostly a run
   of ## sections, and the bar makes each start easy to spot when scrolling on a
   phone. Decoration only: the heading text carries the meaning. */
.markdown-body h2::before {
    content: "";
    display: block;
    width: 2.5rem;
    height: 4px;
    margin-bottom: var(--space-2);
    border-radius: 2px;
    background: var(--color-accent);
}

/* Lists: the reading width of paragraphs, a little air between items, and the
   bullets and numbers in the green accent so lists tie into the palette. */
.markdown-body ul,
.markdown-body ol {
    margin: 0 0 var(--space-3);
    padding-left: 1.5rem;
    max-width: 42rem;
}

.markdown-body li + li {
    margin-top: var(--space-1);
}

.markdown-body li::marker {
    color: var(--color-accent-dark);
    font-weight: 700;
}

/* Quotes (e.g. a passage from the rules of procedure): an accent bar and a faint
   green wash set them apart from the editor's own words. */
.markdown-body blockquote {
    margin: 0 0 var(--space-3);
    padding: var(--space-3) var(--space-4);
    max-width: 42rem;
    border-left: 4px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--color-accent-tint);
}

/* Links: a soft underline that firms up on hover. Underlined at all (not colour
   alone) so links stay recognisable for colour-blind visitors. */
.markdown-body a {
    text-decoration-color: color-mix(in srgb, currentColor 40%, transparent);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color var(--transition), text-decoration-color var(--transition);
}

.markdown-body a:hover {
    text-decoration-color: currentColor;
}

/* Links that leave the site get a small external-link icon, so visitors know
   before clicking. Editors write links to our own pages as relative paths
   (/contact), so "absolute http(s) URL" means "another site". PDFs are left out:
   they carry their own file icon below. */
.markdown-body a:is([href^="http://"], [href^="https://"]):not([href$=".pdf" i])::after {
    content: "";
    display: inline-block;
    width: 0.8em;
    height: 0.8em;
    margin-left: 0.2em;
    vertical-align: -0.05em;
    background-color: currentColor;
    mask: var(--icon-external-link) center / contain no-repeat;
}

/* PDF links inside running text: a file icon in front and a small "PDF" tag
   behind, so visitors know a download (not a web page) opens. */
.markdown-body a[href$=".pdf" i]::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    margin-right: 0.25em;
    vertical-align: -0.15em;
    background-color: currentColor;
    mask: var(--icon-file-text) center / contain no-repeat;
}

.markdown-body a[href$=".pdf" i]::after {
    content: "PDF";
    margin-left: 0.35em;
    padding: 0 0.35em;
    border-radius: 4px;
    background: var(--color-brand-tint);
    color: var(--color-text-soft);
    font-size: 0.75em;
    font-weight: 700;
    letter-spacing: 0.04em;
}

/* A PDF link standing alone in its paragraph or list item becomes a file card;
   this is what turns a plain list of documents on /downloads into a download
   area. Markdown.cs marks such paragraphs/items .lone-link, because CSS cannot see
   the text around a link. Two child paths: in a tight list the link sits directly
   in the <li>, in a loose list inside a <p>. border-box: the 42rem include the
   padding, so the card ends flush with the running text instead of overhanging
   it (same for the aufruf and hinweis boxes below). */
.markdown-body .lone-link > a[href$=".pdf" i],
.markdown-body .lone-link > p > a[href$=".pdf" i] {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    box-sizing: border-box;
    max-width: 42rem;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    box-shadow: var(--shadow);
    font-weight: 600;
    text-decoration: none;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.markdown-body .lone-link > a[href$=".pdf" i]:hover,
.markdown-body .lone-link > p > a[href$=".pdf" i]:hover {
    border-color: var(--color-brand);
    box-shadow: var(--shadow-hover);
}

.markdown-body .lone-link > a[href$=".pdf" i]::before,
.markdown-body .lone-link > p > a[href$=".pdf" i]::before {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    margin: 0;
    color: var(--color-accent-dark);
    background-color: var(--color-accent-dark);
}

/* The "PDF" tag moves to the card's right edge. */
.markdown-body .lone-link > a[href$=".pdf" i]::after,
.markdown-body .lone-link > p > a[href$=".pdf" i]::after {
    margin-left: auto;
}

/* A list of file cards needs no bullets and no indent: the cards are the
   structure. */
.markdown-body li.lone-link:has(> a[href$=".pdf" i], > p > a[href$=".pdf" i]) {
    list-style: none;
}

.markdown-body ul:has(> li.lone-link > a[href$=".pdf" i], > li.lone-link > p > a[href$=".pdf" i]) {
    padding-left: 0;
}

/* Buttons: a mail link alone in its paragraph (the contact page's main action),
   and every link inside an "aufruf" box. Filled with the button blue (see
   --color-button for why not --color-brand); hover darkens it and adds a shadow,
   nothing moves. */
.markdown-body .lone-link > a[href^="mailto:"],
.markdown-body .aufruf a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
    background: var(--color-button);
    color: var(--color-on-button);
    font-weight: 700;
    text-decoration: none;
    transition: background-color var(--transition), box-shadow var(--transition);
}

.markdown-body .lone-link > a[href^="mailto:"]:hover,
.markdown-body .aufruf a:hover {
    background: var(--color-button-hover);
    color: var(--color-on-button);
    box-shadow: var(--shadow-hover);
}

/* The mail button leads with an envelope, so it reads as "write to us" at a
   glance. */
.markdown-body .lone-link > a[href^="mailto:"]::before {
    content: "";
    width: 1.1em;
    height: 1.1em;
    background-color: currentColor;
    mask: var(--icon-mail) center / contain no-repeat;
}

/* --- Design blocks (::: name ... :::) ------------------------------------------
   Markdown.cs turns "::: name" into <div class="name">. The names are German
   because editors type them (CLAUDE.md: values German). An unknown name has no
   rule here and so simply reads as normal text -- a typo never breaks a page. */

/* ::: aufruf -- a highlighted call to action: a tinted box with a brand-blue edge.
   Its links become buttons (rule above). */
.markdown-body .aufruf {
    box-sizing: border-box;   /* padding inside the 42rem, flush with the text */
    margin: 0 0 var(--space-4);
    padding: var(--space-4);
    max-width: 42rem;
    border-left: 4px solid var(--color-brand);
    border-radius: var(--radius);
    background: var(--color-brand-tint);
}

/* ::: hinweis -- a quiet info box with an info icon in front. Green wash, not the
   yellow highlight: it informs, it does not warn. The icon is decoration; the text
   says what matters. */
.markdown-body .hinweis {
    position: relative;
    box-sizing: border-box;   /* padding inside the 42rem, flush with the text */
    margin: 0 0 var(--space-4);
    padding: var(--space-3) var(--space-4) var(--space-3) 3.25rem;
    max-width: 42rem;
    border-radius: var(--radius);
    background: var(--color-accent-tint);
}

.markdown-body .hinweis::before {
    content: "";
    position: absolute;
    top: calc(var(--space-3) + 0.2rem);
    left: var(--space-4);
    width: 1.25rem;
    height: 1.25rem;
    background-color: var(--color-accent-dark);
    mask: var(--icon-info) center / contain no-repeat;
}

/* ::: kacheln and ::: kennzahlen -- a list laid out as a grid of cards. auto-fill
   with a minimum width gives as many columns as fit (one on a phone) without any
   breakpoint. */
.markdown-body :is(.kacheln, .kennzahlen) > ul {
    display: grid;
    gap: var(--space-3);
    max-width: none;
    margin: 0 0 var(--space-4);
    padding: 0;
    list-style: none;
}

.markdown-body .kacheln > ul {
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
}

.markdown-body .kennzahlen > ul {
    grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
}

/* The grid gap does the spacing; the list's own item spacing would only push the
   later cards of the first row down. */
.markdown-body :is(.kacheln, .kennzahlen) li + li {
    margin-top: 0;
}

/* Kacheln: each item a white card; a bold start ("- **Mensa** ...") becomes the
   card's title on its own line. */
.markdown-body .kacheln li {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    background: var(--color-bg);
    box-shadow: var(--shadow);
}

.markdown-body .kacheln li > strong:first-child {
    display: block;
    margin-bottom: var(--space-1);
    color: var(--color-heading);
}

/* Kennzahlen: "- **seit 1975** Gründung" -- the bold part becomes a big figure,
   the rest a small caption beneath. Brand blue for the figure, not the green: the
   green does not reach 3:1 on its own tint, the blue does. */
.markdown-body .kennzahlen li {
    padding: var(--space-4) var(--space-3);
    border-radius: var(--radius);
    background: var(--color-accent-tint);
    color: var(--color-text-soft);
    text-align: center;
}

.markdown-body .kennzahlen li > strong:first-child {
    display: block;
    color: var(--color-brand);
    font-size: 2rem;
    font-weight: var(--font-weight-heading);
    letter-spacing: var(--letter-spacing-heading);
    line-height: 1.15;
}

/* Tables (pipe tables): not in the content yet, styled ahead of time. As a block
   with overflow they scroll sideways on a phone instead of stretching the page. */
.markdown-body table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    margin: 0 0 var(--space-4);
    border-collapse: collapse;
}

.markdown-body th,
.markdown-body td {
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}

.markdown-body th {
    background: var(--color-surface);
    color: var(--color-heading);
    font-weight: 700;
}

/* Images never overflow the column and get the site's rounded corners. */
.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

/* A horizontal rule as a calm thin line with room around it. */
.markdown-body hr {
    margin: var(--space-5) 0;
    border: none;
    border-top: 1px solid var(--color-border);
}