/* ==========================================================================
   Sponsel Sleep – zentrales Stylesheet
   Struktur: Fonts -> Tokens -> Reset/Base -> Typografie -> Layout/Container
   -> Header -> Footer -> Buttons/Links -> Komponenten -> Utilities -> Responsive
   ========================================================================== */

@import url("fonts.css");

/* ---------- Tokens ---------- */
:root {
  /* Farben laut CI-Sponsel-Sleep.md */
  --color-navy: #0A1226;
  --color-navy-2: #10182F;   /* Verlauf oben */
  --color-navy-3: #070B16;   /* Verlauf unten */
  --color-gold: #C2A56C;
  --color-gold-light: #D9C6A0;
  --color-gold-dark: #A3835A;

  /* Warme, hochwertige Creme-/Off-White-Fläche (zentral, siteweit) */
  --color-cream: #F2ECDF;
  --color-cream-elevated: #FAF6EE;

  /* Textfarben */
  --color-text-on-cream: #23283A;
  --color-text-on-cream-muted: #5B5F72;
  --color-text-on-navy: #F2ECDF;
  --color-text-on-navy-muted: #AEB1C4;

  /* Linien / Rahmen */
  --border-on-cream: rgba(10, 18, 38, 0.14);
  --border-on-navy: rgba(242, 236, 223, 0.16);

  /* Typografie */
  --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-h1: clamp(2.35rem, 1.4rem + 3.6vw, 4rem);
  --fs-h2: clamp(1.85rem, 1.3rem + 2.2vw, 2.75rem);
  --fs-h3: clamp(1.3rem, 1.1rem + 0.7vw, 1.6rem);
  --fs-lead: clamp(1.1rem, 1rem + 0.4vw, 1.35rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9rem;
  --fs-eyebrow: 0.8rem;

  --lh-heading: 1.15;
  --lh-body: 1.7;

  /* Abstände */
  --space-3xs: 0.375rem;
  --space-2xs: 0.625rem;
  --space-xs: 1rem;
  --space-sm: 1.5rem;
  --space-md: 2.25rem;
  --space-lg: 3.5rem;
  --space-xl: 5rem;
  --space-2xl: 7rem;

  /* Inhaltsbreiten */
  --container-width: 1180px;
  --container-narrow: 800px;
  --prose-width: 680px;
  --container-padding: clamp(1.25rem, 3vw, 2.5rem);

  --radius-sm: 2px;
  --radius-md: 3px;

  --transition: 220ms ease;
  --shadow-soft: 0 20px 45px -25px rgba(10, 18, 38, 0.35);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[class], ol[class] { list-style: none; padding: 0; }
img, picture, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 3px; }

/* ---------- Base ---------- */
body {
  background: var(--color-cream);
  color: var(--color-text-on-cream);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: var(--lh-heading);
  color: inherit;
  letter-spacing: 0.005em;
}
h1 { font-size: var(--fs-h1); font-weight: 500; }
h2 { font-size: var(--fs-h2); font-weight: 500; }
h3 { font-size: var(--fs-h3); font-weight: 600; font-family: var(--font-body); letter-spacing: 0; }
h4 { font-size: 1.05rem; font-weight: 700; font-family: var(--font-body); }

p { max-width: 65ch; }
p.lead { font-size: var(--fs-lead); line-height: 1.55; max-width: 42ch; }

.section-dark p:not(.lead), .section-dark li, .section-dark,
.section-navy p:not(.lead), .section-navy li, .section-navy { color: var(--color-text-on-navy-muted); }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4, .section-dark strong,
.section-navy h1, .section-navy h2, .section-navy h3, .section-navy h4, .section-navy strong {
  color: var(--color-text-on-navy);
}
.section-dark .form-note, .section-navy .form-note { color: var(--color-text-on-navy-muted); }

strong { font-weight: 600; }

/* Eyebrow / Markenstatement-Label */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
}
.section-dark .eyebrow, .section-navy .eyebrow { color: var(--color-gold); }

/* Markenstatement (z. B. "Schlaf ist unverhandelbar.") behaelt die Linie als Akzent */
.eyebrow--brand::before {
  content: "";
  display: inline-block;
  width: 1.6em;
  height: 1px;
  background: currentColor;
}

/* ---------- Layout / Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}
.container--narrow { max-width: var(--container-narrow); }
.prose { max-width: var(--prose-width); }

main { display: block; }

.section {
  padding-block: var(--space-xl);
}
.section--tight { padding-block: var(--space-lg); }
.section-dark {
  background: linear-gradient(180deg, var(--color-navy-2) 0%, var(--color-navy-3) 100%);
  color: var(--color-text-on-navy);
}
.section-navy { background: var(--color-navy); color: var(--color-text-on-navy); }
.section-cream { background: var(--color-cream); }
.section-elevated { background: var(--color-cream-elevated); }

hr.hairline {
  border: none;
  border-top: 1px solid var(--border-on-cream);
  margin-block: var(--space-lg);
}
.section-dark hr.hairline { border-top-color: var(--border-on-navy); }

/* ---------- Header ---------- */
/* Werte 1:1 aus dem Original-Claude-Design-Export (Startseite v2.dc.html) uebernommen */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #07111F;
  border-bottom: none;
}
.site-header__bar {
  margin-inline: auto;
  padding: 1.125rem clamp(1.25rem, 5vw, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-header .brand { gap: 1.5rem; color: #F7F4EE; }
.site-header .brand__mark-img {
  width: 4.625rem;
  height: 4.625rem;
  display: block;
  flex-shrink: 0;
}
.site-header .brand__word { gap: 0.5rem; }
.site-header .brand__word b { font-size: 1.875rem; color: #F7F4EE; }
.site-header .brand__word em { font-size: 0.71875rem; letter-spacing: 0.2em; color: #B79A5B; }

/* Logo/Wortmarke – reine HTML/CSS-Komposition, kein Bild */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 1.1rem;
  color: var(--color-text-on-navy);
}
.brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 4.625rem;
  height: 4.625rem;
  border: 1px solid var(--color-gold);
  border-radius: 50%;
  flex-shrink: 0;
}
.brand__mark span {
  font-family: var(--font-heading);
  font-weight: 600;
  font-style: italic;
  font-size: 2.4rem;
  background: linear-gradient(155deg, var(--color-gold-light), var(--color-gold) 55%, var(--color-gold-dark));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand__word {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  line-height: 1;
}
.brand__word b {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.9rem;
  letter-spacing: 0.02em;
  color: var(--color-text-on-navy);
  white-space: nowrap;
}
.brand__word em {
  font-style: normal;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-gold);
}

.site-nav { display: flex; align-items: center; gap: var(--space-md); }
.site-nav__list { display: flex; align-items: center; gap: clamp(0.75rem, 1.8vw, 1.625rem); flex-wrap: wrap; }
.site-nav__list a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: #DED5C4;
  position: relative;
  padding-block: 0.35rem;
  white-space: nowrap;
  transition: color var(--transition);
}
.site-nav__list a:hover,
.site-nav__list a[aria-current="page"] { color: #F7F4EE; }
.site-nav__list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: #B79A5B;
}
.site-nav__list li:last-child a {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.125rem;
  border: 1px solid #B79A5B;
  border-radius: var(--radius-sm);
  color: #E3D3AC;
  background: rgba(183, 154, 91, 0.14);
  transition: background var(--transition), color var(--transition);
}
.site-nav__list li:last-child a:hover,
.site-nav__list li:last-child a[aria-current="page"] {
  background: #B79A5B;
  color: #0B1626;
}
.site-nav__list li:last-child a[aria-current="page"]::after { display: none; }

.nav-toggle {
  display: none;
  width: 2.25rem;
  height: 2.25rem;
  position: relative;
  flex-shrink: 0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0.35rem; right: 0.35rem;
  height: 1px;
  background: var(--color-text-on-navy);
  transition: transform var(--transition), opacity var(--transition), top var(--transition);
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

.header-cta { display: inline-flex; }

/* ---------- Footer ---------- */
.site-footer {
  background: #0B1626;
  color: var(--color-text-on-navy-muted);
  border-top: 1px solid rgba(247,244,238,0.1);
}
.site-footer .brand__mark-img {
  width: 3.875rem;
  height: 3.875rem;
  display: block;
  flex-shrink: 0;
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  padding-block: var(--space-xl) var(--space-lg);
}
.site-footer__brand p {
  margin-top: var(--space-sm);
  max-width: 32ch;
  font-size: var(--fs-small);
}
.site-footer h4 {
  color: var(--color-text-on-navy);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.site-footer ul { display: flex; flex-direction: column; gap: 0.6rem; }
.site-footer a { font-size: var(--fs-small); transition: color var(--transition); }
.site-footer a:hover { color: var(--color-gold); }
.site-footer address { font-style: normal; font-size: var(--fs-small); line-height: 1.8; }

.site-footer__bottom {
  border-top: 1px solid var(--border-on-navy);
  padding-block: var(--space-sm);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}
.site-footer__bottom .legal-links { display: flex; gap: var(--space-sm); }

/* ---------- Buttons & Links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.05rem 1.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-gold);
  color: var(--color-navy);
}
.btn-primary:hover { background: var(--color-gold-light); }

.btn-outline {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: transparent;
}
.btn-outline:hover { background: var(--color-gold); color: var(--color-navy); }

.btn-outline-light {
  border-color: var(--border-on-cream);
  color: var(--color-text-on-cream);
}
.btn-outline-light:hover { border-color: var(--color-navy); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-navy);
  border-bottom: 1px solid var(--border-on-cream);
  padding-bottom: 0.15rem;
  transition: border-color var(--transition), color var(--transition), gap var(--transition);
}
.link-arrow:hover { border-color: var(--color-gold); color: var(--color-gold-dark); gap: 0.6rem; }
.section-dark .link-arrow, .section-navy .link-arrow {
  color: var(--color-text-on-navy);
  border-color: var(--border-on-navy);
}
.section-dark .link-arrow:hover, .section-navy .link-arrow:hover { color: var(--color-gold); border-color: var(--color-gold); }

/* ---------- Grid / Karten ---------- */
.grid { display: grid; gap: var(--space-md); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-cream-elevated);
  border: 1px solid var(--border-on-cream);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.card h3 { margin-bottom: 0.6rem; }
.card p { font-size: var(--fs-small); color: var(--color-text-on-cream-muted); }

.card-dark {
  background: rgba(242, 236, 223, 0.04);
  border: 1px solid var(--border-on-navy);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

/* Editorial Alternative zu .card: schmaler Goldrand links, keine Flaeche */
.accent-item {
  border-left: 2px solid var(--color-gold);
  padding-left: 1.1rem;
}
.accent-item p:first-child {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}
.section-dark .accent-item p:first-child, .section-navy .accent-item p:first-child { color: var(--color-text-on-navy); }

/* Editorial Alternative zu .card: nur obere Trennlinie, Zitat-Typografie */
.quote-item {
  border-top: 1px solid var(--border-on-cream);
  padding-top: 1.1rem;
}
.section-dark .quote-item, .section-navy .quote-item { border-top-color: var(--border-on-navy); }
.quote-item p {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.55rem);
  line-height: 1.35;
}

.media-frame {
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-navy-2);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

.media-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 260px;
  border: 1px dashed var(--border-on-cream);
  border-radius: var(--radius-md);
  background: repeating-linear-gradient(135deg, rgba(10,18,38,0.03) 0 12px, transparent 12px 24px);
  color: var(--color-text-on-cream-muted);
  font-size: var(--fs-small);
  text-align: center;
  padding: var(--space-md);
}
.media-placeholder strong { display: block; color: var(--color-text-on-cream); font-family: var(--font-body); }
.section-dark .media-placeholder, .section-navy .media-placeholder {
  border-color: var(--border-on-navy);
  color: var(--color-text-on-navy-muted);
  background: repeating-linear-gradient(135deg, rgba(242,236,223,0.04) 0 12px, transparent 12px 24px);
}
.section-dark .media-placeholder strong, .section-navy .media-placeholder strong { color: var(--color-text-on-navy); }

/* ---------- Steps / Ablauf ---------- */
.steps { counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-sm);
  padding-block: var(--space-sm);
}
.step + .step { border-top: 1px solid var(--border-on-cream); }
.section-dark .step + .step, .section-navy .step + .step { border-top-color: var(--border-on-navy); }
.step__number {
  counter-increment: step;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--color-gold);
  min-width: 2.4rem;
}
.step__number::before { content: counter(step, decimal-leading-zero); }

/* ---------- FAQ Accordion ---------- */
.faq-item { border-top: 1px solid var(--border-on-cream); }
.faq-item:last-child { border-bottom: 1px solid var(--border-on-cream); }
.section-dark .faq-item, .section-navy .faq-item { border-color: var(--border-on-navy); }
.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-block: 1.25rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 500;
}
.faq-item__q .plus { font-size: 1.3rem; color: var(--color-gold); transition: transform var(--transition); flex-shrink: 0; }
.faq-item[aria-expanded="true"] .plus { transform: rotate(45deg); }
.faq-item__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition);
}
.faq-item[aria-expanded="true"] .faq-item__a { grid-template-rows: 1fr; }
.faq-item__a-inner { overflow: hidden; }
.faq-item__a p { padding-bottom: 1.25rem; color: var(--color-text-on-cream-muted); font-size: var(--fs-small); max-width: 60ch; }
.section-dark .faq-item__a p, .section-navy .faq-item__a p { color: var(--color-text-on-navy-muted); }

/* ---------- Formular ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
.form-field { display: flex; flex-direction: column; gap: 0.5rem; }
.form-field--full { grid-column: 1 / -1; }
.form-field label { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-text-on-cream-muted); }
.form-field input, .form-field select, .form-field textarea {
  background: var(--color-cream-elevated);
  border: 1px solid var(--border-on-cream);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.98rem;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--color-gold); }
.form-note { font-size: 0.8rem; color: var(--color-text-on-cream-muted); }
.form-consent { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.85rem; color: var(--color-text-on-cream-muted); }
.form-consent input { margin-top: 0.3rem; }

/* ---------- Quote / Testimonial ---------- */
.quote { font-family: var(--font-heading); font-size: clamp(1.3rem, 1.1rem + 1vw, 1.8rem); font-style: italic; line-height: 1.4; }
.quote-cite { display: block; margin-top: var(--space-sm); font-family: var(--font-body); font-style: normal; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-gold-dark); }
.section-dark .quote-cite, .section-navy .quote-cite { color: var(--color-gold); }

/* ---------- Artikel (Wissen) ---------- */
.article-header p.lead { max-width: var(--prose-width); }
.article-direct-answer {
  border-left: 3px solid var(--color-gold);
  padding-left: var(--space-sm);
  font-size: var(--fs-lead);
  max-width: var(--prose-width);
}
.article-body h2 { margin-top: var(--space-lg); margin-bottom: var(--space-xs); }
.article-body h3 { margin-top: var(--space-md); margin-bottom: var(--space-2xs); }
.article-body p { margin-top: var(--space-xs); }
.article-body ul { list-style: disc; padding-left: 1.3em; max-width: var(--prose-width); }
.article-body li { margin-top: 0.4rem; }
.source-list { font-size: var(--fs-small); color: var(--color-text-on-cream-muted); }
.source-list li { margin-top: 0.3rem; }
.author-box {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  background: var(--color-cream-elevated);
  border: 1px solid var(--border-on-cream);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  max-width: var(--prose-width);
}
.author-box img { width: 4.5rem; height: 4.5rem; object-fit: cover; border-radius: 50%; flex-shrink: 0; }
.author-box h4 { margin-bottom: 0.2rem; }
.author-box p { font-size: var(--fs-small); color: var(--color-text-on-cream-muted); margin: 0; }

/* ---------- Skip Link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-gold);
  color: var(--color-navy);
  padding: 0.75rem 1.25rem;
  z-index: 200;
  font-weight: 700;
}
.skip-link:focus { left: var(--space-xs); top: var(--space-xs); }

/* ---------- Utilities ---------- */
.text-center { text-align: center; margin-inline: auto; }
.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.gold-text { color: var(--color-gold); }
.section-header { max-width: 42rem; margin-bottom: var(--space-lg); }
.section-header.text-center { margin-inline: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .site-footer__top { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .site-nav {
    position: fixed;
    inset: 0;
    top: 4.4rem;
    background: #07111F;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md) var(--container-padding);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .site-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .site-nav__list { flex-direction: column; align-items: flex-start; gap: 1.4rem; width: 100%; }
  .site-nav__list a { font-size: 1rem; }
  .header-cta { width: 100%; }
  .header-cta .btn { width: 100%; }
  .nav-toggle { display: block; }

  /* Kompakte Wortmarke, damit der Header auf schmalen Screens nicht umbricht.
     Desktop-Darstellung bleibt hiervon unberuehrt. */
  .site-header .brand { gap: 0.7rem; }
  .brand__mark { width: 2.75rem; height: 2.75rem; }
  .brand__mark span { font-size: 1.4rem; }
  .site-header .brand__mark-img { width: 2.75rem; height: 2.75rem; }
  .site-header .brand__word b { font-size: 1.2rem; }
  .site-header .brand__word em { font-size: 0.58rem; letter-spacing: 0.14em; white-space: nowrap; }
  .site-header__bar { padding-block: 0.75rem; }
}

@media (max-width: 720px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .site-footer__top { grid-template-columns: 1fr; gap: var(--space-md); }
  .step { grid-template-columns: 1fr; gap: 0.4rem; }
  h1 { line-height: 1.15; }
}

@media (max-width: 480px) {
  .btn { width: 100%; }
  .header-cta .btn { padding-block: 0.8rem; }
}