@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Instrument+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --ch-bg: #f6f8f9;
  --ch-surface: #ffffff;
  --ch-surface-2: #f0f4f5;
  --ch-ink: #1b232c;
  --ch-ink-soft: #4a5661;
  --ch-muted: #78848f;
  --ch-line: #e3e9ed;
  --ch-line-strong: #d1dae0;
  --ch-accent: #0f766e;
  --ch-accent-strong: #0b5a54;
  --ch-accent-soft: #e6f1ef;
  --ch-accent-ink: #0a4a45;
  --ch-sand: #f3efe7;
  --ch-sand-ink: #6b5a3c;
  --ch-shadow: 0 18px 40px -24px rgba(27, 35, 44, 0.28);
  --ch-shadow-soft: 0 8px 24px -18px rgba(27, 35, 44, 0.22);
  --ch-radius: 14px;
  --ch-radius-lg: 22px;
  --ch-radius-sm: 10px;
  --ch-container: 1200px;
  --ch-font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --ch-font-body: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --ch-font-mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
  --ch-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ch-bg);
  color: var(--ch-ink);
  font-family: var(--ch-font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--ch-font-display);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.1;
  color: var(--ch-ink);
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }
h4 { font-size: 1.08rem; }

p { margin: 0 0 1.1em; }
a { color: var(--ch-accent); text-decoration: none; }
a:hover { color: var(--ch-accent-strong); }
img { max-width: 100%; display: block; }

.ch-mono { font-family: var(--ch-font-mono); font-variant-numeric: tabular-nums; }
.ch-container { width: 100%; max-width: var(--ch-container); margin: 0 auto; padding: 0 20px; }
.ch-section { padding: clamp(52px, 8vw, 104px) 0; }
.ch-section--tight { padding: clamp(40px, 5vw, 64px) 0; }

.ch-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ch-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ch-accent-ink);
}
.ch-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--ch-accent);
  display: inline-block;
}

.ch-lead { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--ch-ink-soft); max-width: 62ch; }
.ch-measure { max-width: 68ch; }

.ch-skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ch-ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 200;
}
.ch-skip:focus { left: 0; color: #fff; }

.ch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--ch-font-body);
  font-weight: 500;
  font-size: 0.98rem;
  line-height: 1;
  padding: 13px 22px;
  border-radius: var(--ch-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s var(--ch-ease), background 0.2s var(--ch-ease), border-color 0.2s var(--ch-ease), color 0.2s var(--ch-ease);
}
.ch-btn:active { transform: translateY(1px) scale(0.99); }
.ch-btn--primary { background: var(--ch-accent); color: #fff; }
.ch-btn--primary:hover { background: var(--ch-accent-strong); color: #fff; }
.ch-btn--ghost { background: transparent; color: var(--ch-ink); border-color: var(--ch-line-strong); }
.ch-btn--ghost:hover { border-color: var(--ch-accent); color: var(--ch-accent-strong); }
.ch-btn--light { background: rgba(255,255,255,0.94); color: var(--ch-ink); }
.ch-btn--light:hover { background: #fff; color: var(--ch-accent-strong); }
.ch-btn svg { width: 17px; height: 17px; }

.ch-icon { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ch-icon--sm { width: 16px; height: 16px; }

.ch-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(246, 248, 249, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--ch-line);
}
.ch-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; }
.ch-brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ch-ink); }
.ch-brand:hover { color: var(--ch-ink); }
.ch-brand__mark { width: 34px; height: 34px; border-radius: 9px; background: var(--ch-accent); display: grid; place-items: center; color: #fff; }
.ch-brand__mark svg { width: 19px; height: 19px; stroke: #fff; fill: none; stroke-width: 1.6; }
.ch-brand__name { font-family: var(--ch-font-display); font-weight: 600; font-size: 1.12rem; letter-spacing: -0.02em; line-height: 1; }
.ch-brand__sub { display: block; font-family: var(--ch-font-mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ch-muted); margin-top: 3px; }

.ch-nav { display: flex; align-items: center; gap: 4px; }
.ch-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: 9px;
  color: var(--ch-ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
}
.ch-nav__link:hover, .ch-nav__link[aria-current="page"] { color: var(--ch-ink); background: var(--ch-surface-2); }
.ch-nav__has-drop { position: relative; }
.ch-nav__drop-toggle svg { transition: transform 0.2s var(--ch-ease); }
.ch-nav__has-drop:hover .ch-nav__drop-toggle svg,
.ch-nav__has-drop:focus-within .ch-nav__drop-toggle svg { transform: rotate(180deg); }
.ch-drop {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 320px;
  max-width: calc(100vw - 32px);
  background: var(--ch-surface);
  border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius);
  box-shadow: var(--ch-shadow);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s var(--ch-ease), transform 0.2s var(--ch-ease), visibility 0.2s;
}
.ch-nav__has-drop:hover .ch-drop,
.ch-nav__has-drop:focus-within .ch-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.ch-drop__head { font-family: var(--ch-font-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ch-muted); padding: 8px 12px 6px; }
.ch-drop__item { display: block; padding: 9px 12px; border-radius: 9px; color: var(--ch-ink-soft); font-size: 0.92rem; }
.ch-drop__item:hover { background: var(--ch-accent-soft); color: var(--ch-accent-ink); }
.ch-drop__all { color: var(--ch-accent); font-weight: 500; }

.ch-header__cta { display: inline-flex; }
.ch-burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--ch-line-strong);
  border-radius: 10px;
  background: var(--ch-surface);
  color: var(--ch-ink);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.ch-drawer { display: none; }

.ch-hero {
  position: relative;
  min-height: clamp(500px, 74dvh, 660px);
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
  background: #10201e;
}
.ch-hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/home-hero.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}
.ch-hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 24, 22, 0.9) 0%, rgba(9, 24, 22, 0.62) 46%, rgba(9, 24, 22, 0.24) 100%),
    linear-gradient(0deg, rgba(9, 24, 22, 0.86) 0%, rgba(9, 24, 22, 0.04) 60%);
}
.ch-hero__inner { position: relative; z-index: 2; padding-top: clamp(64px, 12vw, 128px); padding-bottom: clamp(40px, 6vw, 68px); }
.ch-hero__grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 40px; align-items: end; }
.ch-hero__eyebrow { color: #a7ded6; }
.ch-hero__eyebrow::before { background: #6fc9be; }
.ch-hero h1 { color: #fff; max-width: 15ch; }
.ch-hero__sub { color: rgba(255,255,255,0.86); font-size: clamp(1.02rem, 1.5vw, 1.18rem); max-width: 46ch; margin-bottom: 24px; }
.ch-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.ch-hero__panel {
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
  backdrop-filter: blur(6px);
  border-radius: var(--ch-radius-lg);
  padding: 22px 24px;
}
.ch-hero__panel h2 { color: #fff; font-size: 1.1rem; margin-bottom: 14px; }
.ch-steps-mini { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.ch-steps-mini li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.92rem; color: rgba(255,255,255,0.9); }
.ch-steps-mini .n { font-family: var(--ch-font-mono); font-size: 0.78rem; width: 26px; height: 26px; border-radius: 8px; background: rgba(255,255,255,0.14); display: grid; place-items: center; flex: none; }

.ch-section__head { max-width: 60ch; margin-bottom: clamp(28px, 4vw, 48px); }
.ch-section__head--split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: end; max-width: none; }
.ch-section__head p { margin-bottom: 0; }

.ch-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ch-step { background: var(--ch-surface); border: 1px solid var(--ch-line); border-radius: var(--ch-radius); padding: 26px 24px; box-shadow: var(--ch-shadow-soft); }
.ch-step__n { font-family: var(--ch-font-mono); font-size: 0.8rem; color: var(--ch-accent); letter-spacing: 0.08em; }
.ch-step h3 { margin: 12px 0 8px; font-size: 1.18rem; }
.ch-step p { color: var(--ch-ink-soft); font-size: 0.96rem; margin: 0; }

.ch-editorial { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.ch-editorial__media { position: relative; border-radius: var(--ch-radius-lg); overflow: hidden; box-shadow: var(--ch-shadow); }
.ch-editorial__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.ch-editorial__note { display: inline-flex; align-items: center; gap: 9px; margin-top: 18px; padding: 10px 14px; border-radius: 10px; background: var(--ch-surface-2); border: 1px solid var(--ch-line); font-size: 0.88rem; color: var(--ch-ink-soft); }
.ch-editorial__note svg { color: var(--ch-accent); }

.ch-grid-articles { display: grid; grid-template-columns: 1.15fr 1fr; gap: 22px; }
.ch-feature {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  background: var(--ch-surface);
  border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-lg);
  overflow: hidden;
  box-shadow: var(--ch-shadow-soft);
  transition: transform 0.25s var(--ch-ease), box-shadow 0.25s var(--ch-ease);
}
.ch-feature:hover { transform: translateY(-3px); box-shadow: var(--ch-shadow); }
.ch-feature__media { aspect-ratio: 16 / 10; overflow: hidden; }
.ch-feature__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ch-ease); }
.ch-feature:hover .ch-feature__media img { transform: scale(1.04); }
.ch-feature__body { padding: 24px 26px 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.ch-feature__body h3 { font-size: clamp(1.35rem, 2.4vw, 1.8rem); }
.ch-feature__body p { color: var(--ch-ink-soft); margin: 0; }

.ch-postlist { display: flex; flex-direction: column; gap: 22px; }
.ch-post {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 18px;
  background: var(--ch-surface);
  border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius);
  overflow: hidden;
  box-shadow: var(--ch-shadow-soft);
  transition: transform 0.25s var(--ch-ease), box-shadow 0.25s var(--ch-ease);
}
.ch-post:hover { transform: translateY(-2px); box-shadow: var(--ch-shadow); }
.ch-post__media { overflow: hidden; }
.ch-post__media img { width: 100%; height: 100%; object-fit: cover; min-height: 132px; }
.ch-post__body { padding: 16px 18px 16px 0; display: flex; flex-direction: column; gap: 7px; }
.ch-post__body h3 { font-size: 1.12rem; line-height: 1.22; }
.ch-post__body p { font-size: 0.9rem; color: var(--ch-ink-soft); margin: 0; }

.ch-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 0.76rem; color: var(--ch-muted); font-family: var(--ch-font-mono); letter-spacing: 0.02em; }
.ch-tag { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; background: var(--ch-accent-soft); color: var(--ch-accent-ink); font-family: var(--ch-font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.ch-readmore { display: inline-flex; align-items: center; gap: 7px; font-weight: 500; font-size: 0.92rem; margin-top: auto; }
.ch-readmore svg { transition: transform 0.2s var(--ch-ease); }
.ch-feature:hover .ch-readmore svg, .ch-post:hover .ch-readmore svg, a:hover .ch-readmore svg { transform: translateX(3px); }

.ch-mission { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 60px); align-items: center; }
.ch-mission__ink { background: var(--ch-ink); color: #fff; border-radius: var(--ch-radius-lg); padding: clamp(30px, 5vw, 52px); }
.ch-mission__ink h2 { color: #fff; }
.ch-mission__ink p { color: rgba(255,255,255,0.82); }
.ch-mission__list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 14px; }
.ch-mission__list li { display: flex; gap: 12px; align-items: flex-start; color: rgba(255,255,255,0.9); font-size: 0.96rem; }
.ch-mission__list svg { color: #6fc9be; margin-top: 2px; }

.ch-readers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ch-reader { padding: 26px 24px; border-radius: var(--ch-radius); border: 1px solid var(--ch-line); background: var(--ch-surface); }
.ch-reader__ic { width: 42px; height: 42px; border-radius: 11px; background: var(--ch-accent-soft); color: var(--ch-accent); display: grid; place-items: center; margin-bottom: 15px; }
.ch-reader h3 { font-size: 1.12rem; margin-bottom: 7px; }
.ch-reader p { font-size: 0.93rem; color: var(--ch-ink-soft); margin: 0; }

.ch-faq { display: grid; gap: 12px; max-width: 860px; }
.ch-faq__item { border: 1px solid var(--ch-line); border-radius: var(--ch-radius); background: var(--ch-surface); overflow: hidden; }
.ch-faq__q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; text-align: left; padding: 19px 22px; background: transparent; border: 0; cursor: pointer; font-family: var(--ch-font-display); font-size: 1.08rem; font-weight: 500; color: var(--ch-ink); }
.ch-faq__q svg { transition: transform 0.25s var(--ch-ease); color: var(--ch-accent); flex: none; }
.ch-faq__q[aria-expanded="true"] svg { transform: rotate(45deg); }
.ch-faq__a { max-height: 0; overflow: hidden; transition: max-height 0.32s var(--ch-ease); }
.ch-faq__a-inner { padding: 0 22px 20px; color: var(--ch-ink-soft); font-size: 0.96rem; }

.ch-closing { background: var(--ch-accent-soft); border-radius: var(--ch-radius-lg); padding: clamp(34px, 6vw, 66px); display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; align-items: center; }
.ch-closing h2 { color: var(--ch-accent-ink); }
.ch-closing p { color: var(--ch-accent-ink); opacity: 0.9; margin: 0; }
.ch-closing__actions { display: flex; flex-direction: column; gap: 10px; }

.ch-footer { background: var(--ch-ink); color: rgba(255,255,255,0.72); padding-top: clamp(48px, 6vw, 76px); }
.ch-footer a { color: rgba(255,255,255,0.72); }
.ch-footer a:hover { color: #fff; }
.ch-footer__cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; padding-bottom: 40px; }
.ch-footer__brand .ch-brand__name { color: #fff; }
.ch-footer__brand .ch-brand__sub { color: rgba(255,255,255,0.5); }
.ch-footer__blurb { margin: 16px 0 0; font-size: 0.9rem; max-width: 36ch; }
.ch-footer__disc { margin-top: 16px; font-size: 0.82rem; color: rgba(255,255,255,0.55); border-left: 2px solid rgba(111,201,190,0.5); padding-left: 12px; }
.ch-footer__h { font-family: var(--ch-font-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: 15px; }
.ch-footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; font-size: 0.92rem; }
.ch-footer__contact { display: grid; gap: 12px; font-size: 0.92rem; font-style: normal; }
.ch-footer__contact span { display: flex; gap: 10px; align-items: flex-start; }
.ch-footer__contact svg { color: #6fc9be; margin-top: 2px; }
.ch-footer__manage { background: none; border: 0; padding: 0; color: rgba(255,255,255,0.72); font: inherit; font-size: 0.92rem; cursor: pointer; text-align: left; text-decoration: underline; text-underline-offset: 3px; }
.ch-footer__manage:hover { color: #fff; }
.ch-footer__bar { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; font-size: 0.82rem; color: rgba(255,255,255,0.55); }

.ch-page-hero { padding: clamp(48px, 8vw, 92px) 0 clamp(20px, 3vw, 32px); border-bottom: 1px solid var(--ch-line); }
.ch-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-family: var(--ch-font-mono); font-size: 0.74rem; color: var(--ch-muted); margin-bottom: 18px; }
.ch-breadcrumb a { color: var(--ch-muted); }
.ch-breadcrumb a:hover { color: var(--ch-accent); }
.ch-breadcrumb span { color: var(--ch-line-strong); }
.ch-page-hero h1 { max-width: 20ch; }
.ch-page-hero .ch-lead { margin-top: 8px; }

.ch-contact { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 30px; align-items: start; }
.ch-info-card { background: var(--ch-surface); border: 1px solid var(--ch-line); border-radius: var(--ch-radius-lg); padding: 30px; box-shadow: var(--ch-shadow-soft); }
.ch-info-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 18px; }
.ch-info-list li { display: flex; gap: 14px; align-items: flex-start; }
.ch-info-list .ic { width: 42px; height: 42px; border-radius: 11px; background: var(--ch-accent-soft); color: var(--ch-accent); display: grid; place-items: center; flex: none; }
.ch-info-list h3 { font-size: 0.82rem; font-family: var(--ch-font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ch-muted); margin: 0 0 4px; font-weight: 500; }
.ch-info-list a, .ch-info-list p { margin: 0; color: var(--ch-ink); font-size: 0.98rem; }

.ch-form { background: var(--ch-surface); border: 1px solid var(--ch-line); border-radius: var(--ch-radius-lg); padding: 30px; box-shadow: var(--ch-shadow-soft); }
.ch-field { display: grid; gap: 7px; margin-bottom: 18px; }
.ch-field label { font-size: 0.86rem; font-weight: 500; color: var(--ch-ink); }
.ch-field label .req { color: var(--ch-accent); }
.ch-field input, .ch-field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.97rem;
  color: var(--ch-ink);
  background: var(--ch-bg);
  border: 1px solid var(--ch-line-strong);
  border-radius: var(--ch-radius-sm);
  padding: 12px 14px;
  transition: border-color 0.2s var(--ch-ease), box-shadow 0.2s var(--ch-ease);
}
.ch-field input:focus, .ch-field textarea:focus { outline: none; border-color: var(--ch-accent); box-shadow: 0 0 0 3px var(--ch-accent-soft); }
.ch-field textarea { resize: vertical; min-height: 130px; }
.ch-field__help { font-size: 0.8rem; color: var(--ch-muted); }
.ch-field__error { font-size: 0.8rem; color: #a3341f; display: none; }
.ch-field[data-invalid="true"] input, .ch-field[data-invalid="true"] textarea { border-color: #c0492e; }
.ch-field[data-invalid="true"] .ch-field__error { display: block; }
.ch-consent-row { display: flex; gap: 11px; align-items: flex-start; margin: 4px 0 20px; font-size: 0.86rem; color: var(--ch-ink-soft); }
.ch-consent-row input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--ch-accent); flex: none; }

.ch-map { margin-top: clamp(30px, 5vw, 52px); border-radius: var(--ch-radius-lg); overflow: hidden; border: 1px solid var(--ch-line); box-shadow: var(--ch-shadow-soft); }
.ch-map__frame { position: relative; width: 100%; height: clamp(300px, 42vw, 460px); }
.ch-map__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.ch-map__bar { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; padding: 14px 20px; background: var(--ch-surface); border-top: 1px solid var(--ch-line); font-size: 0.88rem; color: var(--ch-ink-soft); }

.ch-prose { max-width: 720px; }
.ch-prose > * { margin-left: auto; margin-right: auto; }
.ch-prose h2 { margin-top: 1.7em; }
.ch-prose h3 { margin-top: 1.4em; }
.ch-prose p, .ch-prose ul, .ch-prose ol { color: var(--ch-ink-soft); }
.ch-prose ul, .ch-prose ol { padding-left: 1.25em; margin: 0 auto 1.1em; }
.ch-prose li { margin-bottom: 0.5em; }
.ch-prose a { text-decoration: underline; text-underline-offset: 3px; }
.ch-prose strong { color: var(--ch-ink); font-weight: 600; }
.ch-prose__figure { margin: 2em auto; }
.ch-prose__figure img { width: 100%; border-radius: var(--ch-radius); border: 1px solid var(--ch-line); }
.ch-prose__figure figcaption { font-size: 0.82rem; color: var(--ch-muted); margin-top: 8px; text-align: center; }

.ch-callout { background: var(--ch-sand); border: 1px solid #e7dfcf; border-left: 3px solid var(--ch-sand-ink); border-radius: var(--ch-radius-sm); padding: 18px 20px; margin: 1.6em auto; max-width: 720px; font-size: 0.94rem; color: var(--ch-sand-ink); }
.ch-callout strong { color: var(--ch-sand-ink); }

.ch-note { background: var(--ch-surface-2); border: 1px solid var(--ch-line); border-radius: var(--ch-radius-sm); padding: 14px 16px; font-size: 0.84rem; color: var(--ch-ink-soft); display: flex; gap: 11px; align-items: flex-start; }
.ch-note svg { color: var(--ch-accent); flex: none; margin-top: 1px; }
.ch-note--sm { font-size: 0.78rem; padding: 10px 14px; }

.ch-article__head { max-width: 760px; margin: 0 auto; }
.ch-article__byline { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; margin: 18px 0 0; font-size: 0.84rem; color: var(--ch-muted); }
.ch-article__cover { margin: clamp(28px, 4vw, 44px) auto clamp(20px, 3vw, 32px); max-width: 960px; border-radius: var(--ch-radius-lg); overflow: hidden; border: 1px solid var(--ch-line); }
.ch-article__cover img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }

.ch-prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 720px; margin: clamp(32px, 5vw, 56px) auto 0; }
.ch-prevnext a { display: flex; flex-direction: column; gap: 5px; padding: 18px 20px; border: 1px solid var(--ch-line); border-radius: var(--ch-radius); background: var(--ch-surface); transition: border-color 0.2s var(--ch-ease), transform 0.2s var(--ch-ease); }
.ch-prevnext a:hover { border-color: var(--ch-accent); transform: translateY(-2px); }
.ch-prevnext .dir { font-family: var(--ch-font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ch-muted); }
.ch-prevnext .ttl { color: var(--ch-ink); font-weight: 500; font-size: 0.98rem; }
.ch-prevnext .next { text-align: right; }

.ch-list-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.ch-card {
  display: flex;
  flex-direction: column;
  background: var(--ch-surface);
  border: 1px solid var(--ch-line);
  border-radius: var(--ch-radius-lg);
  overflow: hidden;
  box-shadow: var(--ch-shadow-soft);
  transition: transform 0.25s var(--ch-ease), box-shadow 0.25s var(--ch-ease);
}
.ch-card:hover { transform: translateY(-3px); box-shadow: var(--ch-shadow); }
.ch-card__media { aspect-ratio: 16 / 9; overflow: hidden; }
.ch-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ch-ease); }
.ch-card:hover .ch-card__media img { transform: scale(1.04); }
.ch-card__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.ch-card__body h3 { font-size: 1.24rem; }
.ch-card__body p { font-size: 0.94rem; color: var(--ch-ink-soft); margin: 0; }

.ch-toc { background: var(--ch-surface); border: 1px solid var(--ch-line); border-radius: var(--ch-radius); padding: 20px 22px; margin: 0 auto clamp(28px, 4vw, 40px); max-width: 720px; }
.ch-toc h2 { font-size: 0.78rem; font-family: var(--ch-font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ch-muted); margin-bottom: 12px; }
.ch-toc ol { margin: 0; padding-left: 1.2em; display: grid; gap: 7px; }
.ch-toc a { color: var(--ch-ink-soft); font-size: 0.93rem; }
.ch-toc a:hover { color: var(--ch-accent); }

.ch-cookie { position: fixed; left: 0; right: 0; bottom: 0; z-index: 120; display: none; }
.ch-cookie.is-visible { display: block; }
.ch-cookie__bar { background: var(--ch-surface); border-top: 1px solid var(--ch-line-strong); box-shadow: 0 -14px 40px -24px rgba(27,35,44,0.35); }
.ch-cookie__bar-inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; padding: 16px 0; }
.ch-cookie__text { font-size: 0.86rem; color: var(--ch-ink-soft); max-width: 62ch; }
.ch-cookie__text a { text-decoration: underline; text-underline-offset: 2px; }
.ch-cookie__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.ch-cookie__panel { display: none; background: var(--ch-surface); border-top: 1px solid var(--ch-line-strong); box-shadow: 0 -14px 40px -24px rgba(27,35,44,0.35); max-height: 92dvh; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.ch-cookie[data-mode="panel"] .ch-cookie__bar { display: none; }
.ch-cookie[data-mode="panel"] .ch-cookie__panel { display: block; }
.ch-cookie__panel-inner { display: grid; grid-template-columns: 1fr 1.1fr auto; gap: 30px; padding: 26px 0; align-items: start; }
.ch-cookie__intro h2 { font-size: 1.25rem; }
.ch-cookie__intro p { font-size: 0.88rem; color: var(--ch-ink-soft); margin: 0; }
.ch-cookie__cats { display: grid; gap: 12px; }
.ch-cat { border: 1px solid var(--ch-line); border-radius: var(--ch-radius-sm); overflow: hidden; }
.ch-cat__row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 16px; }
.ch-cat__label { display: flex; align-items: center; gap: 10px; }
.ch-cat__expand { background: none; border: 0; padding: 0; cursor: pointer; color: var(--ch-muted); display: inline-flex; }
.ch-cat__expand svg { transition: transform 0.2s var(--ch-ease); }
.ch-cat__expand[aria-expanded="true"] svg { transform: rotate(180deg); }
.ch-cat__name { font-weight: 500; font-size: 0.95rem; color: var(--ch-ink); }
.ch-cat__always { font-family: var(--ch-font-mono); font-size: 0.72rem; color: var(--ch-accent); letter-spacing: 0.04em; }
.ch-cat__detail { max-height: 0; overflow: hidden; transition: max-height 0.28s var(--ch-ease); border-top: 0 solid var(--ch-line); }
.ch-cat__detail[data-open="true"] { max-height: 260px; border-top-width: 1px; }
.ch-cat__detail-inner { padding: 14px 16px; font-size: 0.82rem; color: var(--ch-ink-soft); }
.ch-cat__detail-inner dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; }
.ch-cat__detail-inner dt { color: var(--ch-muted); }
.ch-switch { position: relative; width: 44px; height: 26px; flex: none; }
.ch-switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.ch-switch__track { position: absolute; inset: 0; background: var(--ch-line-strong); border-radius: 999px; transition: background 0.2s var(--ch-ease); }
.ch-switch__track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; background: #fff; border-radius: 50%; transition: transform 0.2s var(--ch-ease); box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.ch-switch input:checked + .ch-switch__track { background: var(--ch-accent); }
.ch-switch input:checked + .ch-switch__track::after { transform: translateX(18px); }
.ch-switch input:focus-visible + .ch-switch__track { box-shadow: 0 0 0 3px var(--ch-accent-soft); }
.ch-switch--locked .ch-switch__track { background: var(--ch-accent); opacity: 0.55; }
.ch-cookie__panel-actions { display: grid; gap: 10px; min-width: 190px; }
.ch-cookie__panel-actions .ch-btn { width: 100%; }

.ch-modal { position: fixed; inset: 0; z-index: 140; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(15,23,22,0.5); }
.ch-modal.is-open { display: flex; }
.ch-modal__box { background: var(--ch-surface); border-radius: var(--ch-radius-lg); padding: 34px 32px; max-width: 420px; width: 100%; text-align: center; box-shadow: var(--ch-shadow); }
.ch-modal__ic { width: 54px; height: 54px; border-radius: 50%; background: var(--ch-accent-soft); color: var(--ch-accent); display: grid; place-items: center; margin: 0 auto 16px; }
.ch-modal__box h2 { font-size: 1.4rem; }
.ch-modal__box p { color: var(--ch-ink-soft); font-size: 0.95rem; margin-bottom: 20px; }

.js .ch-reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s var(--ch-ease), transform 0.6s var(--ch-ease); }
.js .ch-reveal.is-in { opacity: 1; transform: none; }

.ch-legal-layout { display: grid; grid-template-columns: 240px 1fr; gap: clamp(28px, 5vw, 56px); align-items: start; }
.ch-legal-aside { position: sticky; top: 92px; }
.ch-legal-aside .ch-toc { margin: 0; }

@media (max-width: 960px) {
  .ch-hero__grid { grid-template-columns: 1fr; gap: 28px; }
  .ch-hero__panel { max-width: 460px; }
  .ch-editorial, .ch-mission, .ch-closing, .ch-contact, .ch-grid-articles, .ch-cookie__panel-inner, .ch-legal-layout { grid-template-columns: 1fr; }
  .ch-feature { grid-row: auto; }
  .ch-steps { grid-template-columns: 1fr; }
  .ch-readers { grid-template-columns: 1fr 1fr; }
  .ch-section__head--split { grid-template-columns: 1fr; }
  .ch-cookie__panel-actions { min-width: 0; }
  .ch-legal-aside { position: static; }
  .ch-legal-aside .ch-toc { margin-bottom: 4px; }
}

@media (max-width: 900px) {
  .ch-nav, .ch-header__cta { display: none; }
  .ch-burger { display: inline-flex; }
  .ch-drawer { display: block; position: fixed; inset: 0; z-index: 130; visibility: hidden; }
  .ch-drawer.is-open { visibility: visible; }
  .ch-drawer__scrim { position: absolute; inset: 0; background: rgba(15,23,22,0.45); opacity: 0; transition: opacity 0.25s var(--ch-ease); }
  .ch-drawer.is-open .ch-drawer__scrim { opacity: 1; }
  .ch-drawer__panel { position: absolute; top: 0; right: 0; height: 100%; width: min(86vw, 360px); background: var(--ch-surface); box-shadow: var(--ch-shadow); transform: translateX(100%); transition: transform 0.3s var(--ch-ease); display: flex; flex-direction: column; padding: 18px; overflow-y: auto; }
  .ch-drawer.is-open .ch-drawer__panel { transform: none; }
  .ch-drawer__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
  .ch-drawer__link { display: flex; align-items: center; justify-content: space-between; padding: 14px 12px; border-radius: 10px; color: var(--ch-ink); font-size: 1.02rem; font-weight: 500; border-bottom: 1px solid var(--ch-line); }
  .ch-drawer__link:hover { background: var(--ch-surface-2); }
  .ch-drawer__sub { display: grid; }
  .ch-drawer__sub a { padding: 11px 12px 11px 24px; font-size: 0.92rem; color: var(--ch-ink-soft); border-bottom: 1px solid var(--ch-line); }
  .ch-drawer__cta { margin-top: 16px; }
  .ch-drawer__cta .ch-btn { width: 100%; }
}

@media (max-width: 760px) {
  .ch-post { grid-template-columns: 104px 1fr; }
  .ch-list-grid, .ch-readers { grid-template-columns: 1fr; }
  .ch-prevnext { grid-template-columns: 1fr; }
  .ch-prevnext .next { text-align: left; }
  .ch-footer__cols { grid-template-columns: 1fr; gap: 28px; }
  .ch-closing__actions .ch-btn { width: 100%; }
  .ch-cookie__actions { width: 100%; }
  .ch-cookie__actions .ch-btn { flex: 1; }
  .ch-footer__bar { justify-content: flex-start; }
  body { font-size: 16px; }
}

@media (max-width: 500px) {
  .ch-container { padding: 0 16px; }
  .ch-post { grid-template-columns: 1fr; }
  .ch-post__media img { min-height: 180px; }
  .ch-post__body { padding: 0 16px 18px; }
  .ch-hero__actions .ch-btn { width: 100%; }
  .ch-cookie__actions { flex-direction: column; }
  .ch-cookie__actions .ch-btn { flex: none; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .ch-reveal, .js .ch-reveal { opacity: 1; transform: none; }
}