/* Česko v rytmu srdce
   Brand tokens from Figma "01 — Foundations"; light theme from "07 — Hi-fi Desktop 1440 Light",
   dark theme from "05 — Hi-fi Desktop 1440 Dark" and "06 — Hi-fi Mobile 390 Dark". */
:root {
  --teal: #5c9e9d;
  --pink: #c45181;
  --black: #141414;
  --white: #ffffff;
  --ink: #141414;
  --ink-muted: #3d3d3d;
  --ink-soft: #6b6b6b;
  --radius: 16px;
  --radius-sm: 8px;
  --container: 1312px;
  --gutter: 64px;

  /* Light theme (default) */
  --bg: #ffffff;
  --bg-hero: linear-gradient(180deg, #edf5f4 0%, #eef5f5 100%);
  --bg-section: #ffffff;
  --bg-section-alt: #f4f8f8;
  --bg-manual: #f3f4f4;
  --text: #141414;
  --text-muted: #43494a;
  --text-soft: #6b6b6b;
  --line: rgba(20, 20, 20, 0.14);
  --header-bg: rgba(255, 255, 255, 0.94);
  --nav-hover: #c45181;

  --card-bg: #ffffff;
  --card-border: rgba(92, 158, 157, 0.45);
  --card-shadow: 0 1px 2px rgba(20, 20, 20, 0.06);
  --stat-teal-bg: #f1f7f7;
  --stat-teal-border: rgba(92, 158, 157, 0.45);
  --stat-pink-bg: #fdf2f6;
  --stat-pink-border: rgba(196, 81, 129, 0.45);
  --callout-bg: #fdf2f6;

  --band-bg: #fbeef3;
  --band-text: #141414;
  --band-heading: #c45181;
  --band-mark: #c45181;

  --btn-primary-bg: #5c9e9d;
  --btn-primary-text: #ffffff;
  --btn-secondary-bg: transparent;
  --btn-secondary-text: #141414;
  --btn-secondary-border: transparent;
  --btn-outline-bg: #ffffff;
  --btn-outline-text: #141414;
  --btn-outline-border: rgba(20, 20, 20, 0.35);

  --area-bg: #ffffff;
  --area-border: rgba(92, 158, 157, 0.45);
  --area-text: #141414;
  --area-text-muted: #3d3d3d;

  --field-border: #c8d2d2;
  --chip-bg: rgba(20, 20, 20, 0.05);
  --chip-border: rgba(20, 20, 20, 0.25);
  --placeholder-border: rgba(20, 20, 20, 0.18);
  --hero-photo-shadow: 0 24px 48px -24px rgba(20, 20, 20, 0.35);
  --hero-photo-ratio: 612 / 544;
  --eyebrow-transform: none;
  --eyebrow-spacing: 0;
  --eyebrow-size: 14px;
  --btn-radius: 8px;
}

:root[data-theme="dark"] {
  --bg: #1b1a1b;
  --bg-hero:
    radial-gradient(38% 55% at 0% 12%, rgba(196, 81, 129, .95), rgba(196, 81, 129, 0) 100%),
    radial-gradient(34% 60% at 100% 85%, rgba(92, 158, 157, .85), rgba(92, 158, 157, 0) 100%),
    #1b1a1b;
  --bg-section: linear-gradient(170deg, #211b1f 0%, #1c1c1d 60%, #1e2223 100%);
  --bg-section-alt: linear-gradient(170deg, #1f2222 0%, #1a1a1b 55%, #202626 100%);
  --bg-manual: #1f2224;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.72);
  --text-soft: rgba(255, 255, 255, 0.6);
  --line: rgba(255, 255, 255, 0.12);
  --header-bg: rgba(20, 20, 20, 0.92);
  --nav-hover: #e27aa5;

  --card-bg: #ffffff;
  --card-border: transparent;
  --card-shadow: none;
  --stat-teal-bg: #f3f8f8;
  --stat-teal-border: rgba(92, 158, 157, 0.45);
  --stat-pink-bg: #fbf4f7;
  --stat-pink-border: rgba(196, 81, 129, 0.55);
  --callout-bg: #fbf4f7;

  --band-bg: #b95b83;
  --band-text: #ffffff;
  --band-heading: #ffffff;
  --band-mark: #ffffff;

  --btn-primary-bg: #6a9b99;
  --btn-primary-text: #ffffff;
  --btn-secondary-bg: rgba(255, 255, 255, 0.14);
  --btn-secondary-text: #ffffff;
  --btn-secondary-border: rgba(255, 255, 255, 0.18);
  --btn-outline-bg: rgba(255, 255, 255, 0.14);
  --btn-outline-text: #ffffff;
  --btn-outline-border: rgba(255, 255, 255, 0.2);

  --area-bg: #ffffff;
  --area-border: transparent;
  --area-text: #141414;
  --area-text-muted: #3d3d3d;

  --field-border: #555555;
  --chip-bg: rgba(255, 255, 255, 0.08);
  --chip-border: rgba(255, 255, 255, 0.3);
  --placeholder-border: rgba(255, 255, 255, 0.18);
  --hero-photo-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6);
  --eyebrow-transform: uppercase;
  --eyebrow-spacing: .06em;
  --eyebrow-size: 13px;
  --btn-radius: 999px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; line-height: 1.15; }
h2 { font-size: clamp(28px, 3.4vw, 48px); }
h3 { font-size: 18px; line-height: 1.35; }
p { margin: 0; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--white); color: var(--ink); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

.container { width: 100%; max-width: calc(var(--container) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 96px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 700; font-size: 17px; line-height: 1.05; }
.brand-mark { width: 44px; height: 38px; flex: none; }
.site-nav { display: flex; gap: 56px; }
.site-nav a { text-decoration: none; font-weight: 500; font-size: 17px; padding: 8px 0; white-space: nowrap; }
.site-nav a:hover { color: var(--nav-hover); }
.menu-toggle, .theme-toggle {
  min-height: 56px; border-radius: 15px;
  border: 1px solid var(--chip-border); background: var(--chip-bg);
  color: var(--text); font: inherit; font-weight: 600; font-size: 17px; cursor: pointer;
}
.menu-toggle { display: none; min-width: 89px; padding: 0 20px; }
.theme-toggle { width: 56px; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.theme-toggle svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 12px 32px; border-radius: var(--btn-radius);
  font: inherit; font-weight: 600; font-size: 15px; text-decoration: none; text-align: center;
  border: 1px solid transparent; cursor: pointer; transition: filter .15s, background-color .15s;
}
.btn:hover { filter: brightness(1.08); }
.btn-light { background: var(--btn-primary-bg); color: var(--btn-primary-text); }
.btn-ghost { background: var(--btn-secondary-bg); color: var(--btn-secondary-text); border-color: var(--btn-secondary-border); }
.btn-dark { background: var(--btn-outline-bg); color: var(--btn-outline-text); border-color: var(--btn-outline-border); margin-top: 32px; min-width: 300px; }
.btn-teal { background: var(--btn-primary-bg); color: var(--btn-primary-text); border-radius: var(--radius-sm); margin-top: 40px; min-width: 328px; }
.btn-teal-dark { background: var(--btn-primary-bg); color: var(--btn-primary-text); border-radius: var(--radius-sm); width: 100%; margin-top: 24px; }
.btn-wide { min-width: 280px; margin-top: 32px; }
/* Both themes share the hero layout and secondary button. */
.hero .btn-row { flex-direction: column; align-items: flex-start; gap: 20px; }
.hero .btn-ghost { background: var(--btn-outline-bg); color: var(--btn-outline-text); border-color: var(--btn-outline-border); }

/* Hero */
.hero { position: relative; padding: 96px 0 72px; overflow: hidden; background: var(--bg-hero); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 612px; gap: 40px; align-items: center; }
.eyebrow { font-size: var(--eyebrow-size); font-weight: 600; letter-spacing: var(--eyebrow-spacing); text-transform: var(--eyebrow-transform); margin-bottom: 16px; }
.hero .eyebrow { font-size: 14px; letter-spacing: 0; text-transform: none; }
.hero .btn { border-radius: 8px; }
.hero h1 { font-size: clamp(44px, 5.6vw, 72px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; max-width: 7.2em; }
.hero h1 .accent { color: var(--pink); }
:root[data-theme="dark"] .hero h1 .accent { color: inherit; }
.hero-sub { font-size: clamp(20px, 1.9vw, 26px); font-weight: 700; margin-top: 20px; line-height: 1.3; }
.hero-lead { font-size: 17px; line-height: 1.6; color: var(--text-muted); margin-top: 16px; max-width: 620px; }
.btn-row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 28px; align-items: center; }
.btn-row .btn { min-width: 328px; }
.hero-photo { margin: 0; border-radius: 24px; overflow: hidden; box-shadow: var(--hero-photo-shadow); }
.hero-photo img { width: 100%; aspect-ratio: var(--hero-photo-ratio); object-fit: cover; }

/* Sections */
.section { padding: 0 0 72px; background: var(--bg-section); }
.section-teal { background: var(--bg-section-alt); padding-top: 72px; }
.divider { border: 0; border-top: 1px solid var(--line); margin: 0 0 64px; }
.divider-gap { margin-top: 64px; }
.section-teal > .container > .divider:first-child { margin-top: -8px; }
.lead { color: var(--text-muted); max-width: 760px; margin: 24px 0 40px; font-size: 16px; }
.muted { color: var(--text-muted); margin-top: 24px; }
.muted.lg { font-size: 17px; line-height: 1.65; max-width: 580px; }
.note { font-size: 13px; color: var(--text-soft); margin-top: 32px; max-width: 700px; }
.note-discount { color: var(--text-muted); margin-top: 20px; }
.note-discount + .note { margin-top: 12px; }

.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Cards */
.card {
  background: var(--card-bg); color: var(--ink); border-radius: var(--radius); padding: 24px;
  border: 1px solid var(--card-border); box-shadow: var(--card-shadow);
}
.card p { color: var(--ink-muted); font-size: 16px; line-height: 1.6; }
.stat {
  background: var(--stat-teal-bg); color: var(--ink); border: 1px solid var(--stat-teal-border);
  border-radius: var(--radius); padding: 24px; min-height: 300px;
}
.stat p { font-size: 16px; line-height: 1.6; color: var(--ink); }
.stat .stat-num { font-size: 20px; font-weight: 600; margin-bottom: 12px; line-height: 1.2; }
.stat .stat-num strong { font-size: 44px; font-weight: 500; letter-spacing: -0.02em; }
.stat-teal .stat-num strong { color: var(--teal); }
.stat-pink { background: var(--stat-pink-bg); border-color: var(--stat-pink-border); }
.stat-pink .stat-num strong { color: var(--pink); }
.stat .source { font-size: 13px; color: var(--ink-soft); margin-top: 16px; }
#proc-program .grid-4 .stat { display: flex; flex-direction: column; }
#proc-program .grid-4 .stat .source { margin-top: auto; padding-top: 16px; }

/* Atrial fibrillation */
.fs-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; align-items: start; }
.fs-grid h2 { max-width: 12ch; }
.fs-grid .stat { min-height: 0; }
.callout { background: var(--callout-bg); color: var(--ink); border-radius: var(--radius-sm); padding: 16px; margin-top: 40px; font-size: 15px; }

/* Quote band */
.band { background: var(--band-bg); color: var(--band-text); padding: 64px 0; }
.band-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: start; }
.quote-mark { width: 64px; height: 48px; color: var(--band-mark); margin-bottom: 28px; }
.band h2 { font-size: clamp(30px, 3vw, 38px); font-weight: 500; line-height: 1.25; color: var(--band-heading); }
.band-copy p { font-size: 16px; line-height: 1.55; }
.band-copy p + p { margin-top: 24px; }

/* Program areas (accordion on mobile) */
.area { min-height: 260px; }
.area summary { list-style: none; cursor: default; }
.area summary::-webkit-details-marker { display: none; }
.area .icon { width: 26px; height: 26px; margin-bottom: 20px; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.icon-pink { stroke: var(--pink); }
.icon-teal { stroke: var(--teal); }
.area h3 { margin-bottom: 12px; }

.topic { display: flex; flex-direction: column; }
.topic h3 { margin-bottom: 16px; font-size: 19px; }
.link { margin-top: 16px; font-size: 14px; color: var(--ink); text-underline-offset: 3px; }
.link:hover { color: var(--pink); }

/* Extra rhythm topics: native disclosure and touch-friendly horizontal scrolling. */
.rhythm-more summary { list-style: none; }
.rhythm-more summary::-webkit-details-marker { display: none; }
.rhythm-more-hide, .rhythm-more[open] .rhythm-more-show { display: none; }
.rhythm-more[open] .rhythm-more-hide { display: inline; }
.rhythm-panel { margin-top: 24px; min-width: 0; }
.rhythm-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.rhythm-toolbar p { color: var(--text-muted); font-size: 14px; }
.rhythm-controls { display: flex; gap: 8px; flex-shrink: 0; }
.rhythm-controls[hidden] { display: none; }
.rhythm-arrow { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); font: inherit; font-size: 22px; cursor: pointer; }
.rhythm-arrow:disabled { opacity: .35; cursor: default; }
.rhythm-track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 48px) / 3); gap: 24px; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-padding: 4px; padding: 4px 4px 16px; scrollbar-width: thin; scrollbar-color: var(--teal) transparent; }
.rhythm-card { min-width: 0; scroll-snap-align: start; overflow-wrap: anywhere; }
.rhythm-card .link { margin-top: auto; padding-top: 16px; }
@media (max-width: 1100px) {
  .rhythm-track { grid-auto-columns: calc((100% - 24px) / 2); }
}
@media (max-width: 600px) {
  .rhythm-toolbar { align-items: flex-start; }
  .rhythm-track { grid-auto-columns: 90%; gap: 16px; }
}

/* Manual */
.manual { padding: 104px 0; background: var(--bg-manual); }
.manual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.manual h2 { max-width: 12.5em; font-size: clamp(30px, 3.4vw, 44px); margin-bottom: 0; }
.bullets { list-style: none; padding: 0; margin: 28px 0 0; font-size: 17px; line-height: 1.5; }
.bullets li::before { content: "• "; }
.manual-visual { margin: 0; justify-self: center; max-width: 500px; }
.manual-visual img { border-radius: var(--radius); }

/* Articles */
#obsah { padding-top: 72px; }
.post { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.post img { width: 100%; aspect-ratio: 384 / 216; object-fit: cover; }
.post-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.post-body .link { margin-top: auto; padding-top: 16px; }
.post h3 { font-size: 19px; margin-bottom: 16px; }
.meta { font-size: 13px !important; color: var(--ink-soft) !important; margin-top: 16px; text-transform: uppercase; letter-spacing: .02em; }
.articles-toggle[hidden] { display: none; }
.involve-disclosure > summary { list-style: none; cursor: default; }
.involve-disclosure > summary::-webkit-details-marker { display: none; }

/* Get involved */
.tags { font-size: 14px; color: var(--text-muted); margin: -8px 0 40px; }
.involve-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.offer { display: flex; flex-direction: column; min-height: 230px; }
.offer h3 { font-size: 19px; margin-bottom: 12px; }
.num { margin-top: auto; padding-top: 16px; font-size: 22px; color: var(--pink); }
.partner-form { border: 1px solid var(--teal); }
.partner-form h3 { font-size: 19px; margin-bottom: 20px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.field { display: flex; flex-direction: column; gap: 6px; border: 1px solid var(--field-border); border-radius: var(--radius-sm); padding: 12px 16px; }
.field:focus-within { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(92,158,157,.25); }
.field span { font-size: 15px; font-weight: 600; }
.field input, .field select, .field textarea {
  border: 0; padding: 0; font: inherit; font-size: 15px; color: var(--ink); background: transparent; outline: none; width: 100%;
}
.field textarea { resize: vertical; min-height: 64px; }
.field select { appearance: none; -webkit-appearance: none; cursor: pointer; color: var(--ink-soft);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M6 1v9M2 6.5 6 10.5l4-4' fill='none' stroke='%23555' stroke-width='1.4'/%3E%3C/svg%3E") right center / 12px no-repeat; }
.field select:valid { color: var(--ink); }
.field.invalid { border-color: var(--pink); }
.field-full { grid-column: 1 / -1; }
.privacy { display: inline-block; margin-top: 20px; font-size: 14px; color: var(--ink); text-underline-offset: 3px; }
.form-status { margin-top: 12px; font-size: 14px; color: var(--ink-muted); }
.form-status:empty { display: none; }

/* Partners */
.partners { padding-bottom: 72px; background: var(--bg-section-alt); }
.partner-logos { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 32px; }
.partner-logo {
  display: flex; align-items: center; justify-content: center; flex: 0 1 320px;
  min-width: 0; min-height: 144px; padding: 32px; background: var(--white);
  border: 1px solid rgba(92, 158, 157, 0.45); border-radius: var(--radius);
  transition: border-color .15s, box-shadow .15s;
}
.partner-logo img { display: block; width: 100%; max-width: 256px; height: auto; max-height: 80px; object-fit: contain; }
.partner-logo:hover { border-color: var(--teal); box-shadow: 0 4px 16px rgba(92, 158, 157, .15); }

/* Footer – dark in both themes, as in the design */
.site-footer { background: var(--black); color: var(--white); padding: 48px 0; font-size: 15px; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; line-height: 1.6; }
.site-footer ul.small { font-size: 13.5px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.company { font-size: 13.5px; line-height: 1.5; }

/* Responsive */
@media (max-width: 1000px) {
  .menu-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 16px 16px;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .site-nav a:last-child { border-bottom: 0; }
}

@media (max-width: 1200px) {
  /* below the 1440 design width the hero photo column flexes again */
  .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 32px; }
  :root { --gutter: 40px; }
}

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .fs-grid { grid-template-columns: 1fr 1fr; }
  .fs-grid > div:first-child { grid-column: 1 / -1; }
  .involve-grid { grid-template-columns: 1fr; }
  .stat, .area { min-height: 0; }
}

@media (max-width: 860px) {
  :root { --gutter: 16px; }
  .header-inner { min-height: 64px; gap: 12px; }
  .brand { font-size: 15px; }
  .brand-mark { width: 38px; height: 33px; }

  .hero { padding: 40px 0 56px; }
  .hero-grid, .band-grid, .manual-grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero-grid { gap: 32px; }
  .hero-lead { font-size: 16px; }
  .hero .btn-row { align-items: stretch; }
  .btn-row .btn, .btn-teal, .btn-dark, .btn-wide { width: 100%; min-width: 0; }
  .grid-4, .fs-grid { grid-template-columns: 1fr; }
  .section, .manual { padding-bottom: 56px; }
  .section-teal, #obsah { padding-top: 56px; }
  .manual { padding-top: 56px; }
  .divider { margin-bottom: 48px; }
  .divider-gap { margin-top: 48px; }
  .band { padding: 48px 0; }
  .band-grid { gap: 24px; }
  .quote-mark { width: 44px; height: 33px; margin-bottom: 16px; }

  /* Full-width pill buttons, as in the mobile design */
  .btn-teal, .btn-dark { border-radius: 999px; }
  :root[data-theme="dark"] .btn-teal,
  :root[data-theme="dark"] .btn-dark { background: var(--white); color: var(--ink); border-color: transparent; }
  .hero .btn-ghost { justify-content: center; }

  /* Program areas become accordion cards */
  .areas { gap: 28px; }
  .area { padding: 0; background: #f4f4f4; color: var(--area-text); border: 1px solid transparent; }
  :root[data-theme="dark"] .area { background: rgba(255,255,255,.04); color: var(--text); border-color: rgba(255,255,255,.14); }
  .area summary { display: flex; align-items: center; gap: 12px; padding: 24px; cursor: pointer; min-height: 96px; }
  .area summary::after { content: "+"; margin-left: auto; font-size: 24px; line-height: 1; color: currentColor; }
  .area[open] summary::after { content: "–"; }
  .area .icon { display: none; }
  .area h3 { margin: 0; font-size: 20px; color: inherit; }
  .area p { padding: 0 24px 24px; color: var(--area-text-muted); }
  :root[data-theme="dark"] .area p { color: var(--text-muted); }
  .involve-disclosure > summary { display: flex; align-items: center; gap: 20px; cursor: pointer; min-height: 64px; }
  .involve-disclosure > summary::after { content: "+"; margin-left: auto; font-size: 24px; font-weight: 600; flex-shrink: 0; }
  .involve-disclosure[open] > summary::after { content: "–"; }
  .articles-collapsible:not(.articles-expanded) .post:not(:first-child),
  .articles-collapsible:not(.articles-expanded) .more-articles-link { display: none; }
  .articles-toggle { border-radius: var(--radius-sm); }

  /* Cards alternate mint and pink tints on mobile */
  .topic:nth-child(odd), .post:nth-child(odd), .offer:nth-child(odd) { background: #f2f8f8; }
  .topic:nth-child(even), .post:nth-child(even), .offer:nth-child(even) { background: #fdf1f5; }

  .fields { grid-template-columns: 1fr; }
  .partner-logos { gap: 16px; }
  .partner-logo { flex-basis: 100%; }
  .footer-grid { flex-direction: column; gap: 24px; }
}

/* Honeypot field for bots – hidden from people */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status.ok { color: #2f6f6e; font-weight: 600; }
.form-status.err { color: #a83e6b; }
.btn[disabled] { opacity: .6; cursor: progress; }