/* Scarf landing page.
 * Vanilla CSS, no framework. Tokens map to ScarfDesign (rust palette).
 *
 * Layers:
 *   1. Tokens (CSS custom properties)
 *   2. Reset + base
 *   3. Layout primitives
 *   4. Header / footer
 *   5. Sections (hero, trust strip, what, features, ios, why, templates, download, faq)
 *   6. Components (buttons, cards, phone frame)
 *   7. Responsive
 */

/* ---------- 1. Tokens ---------- */

:root {
  /* Colors — light mode (mirrors ScarfBrand.xcassets light variants) */
  --accent: #C2563D;
  --accent-hover: #A8482F;
  --accent-active: #8E3B26;
  --accent-tint: rgba(194, 86, 61, 0.12);

  --fg: #1A1818;
  --fg-muted: #5C5552;
  --fg-faint: #8B8480;

  --bg: #FAF7F2;
  --bg-card: #FFFFFF;
  --bg-tertiary: #F2EDE5;

  --border: #E5DED2;
  --border-strong: #C9BFAE;

  --success: #4F8B5F;
  --danger: #B5453A;
  --warning: #C9821C;
  --info: #4A6F8E;

  /* Spacing — ScarfSpace s1..s10 */
  --s1: 4px;
  --s2: 8px;
  --s3: 12px;
  --s4: 16px;
  --s5: 20px;
  --s6: 24px;
  --s7: 32px;
  --s8: 40px;
  --s9: 56px;
  --s10: 80px;

  /* Radius — ScarfRadius */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-xxl: 28px;
  --r-pill: 999px;

  /* Typography */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "JetBrains Mono", monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26, 24, 24, 0.04), 0 2px 6px rgba(26, 24, 24, 0.04);
  --shadow-md: 0 2px 4px rgba(26, 24, 24, 0.06), 0 8px 20px rgba(26, 24, 24, 0.06);
  --shadow-lg: 0 4px 8px rgba(26, 24, 24, 0.08), 0 16px 40px rgba(26, 24, 24, 0.10);
  --shadow-xl: 0 8px 16px rgba(26, 24, 24, 0.10), 0 32px 80px rgba(26, 24, 24, 0.14);

  /* Layout */
  --max-w: 1180px;
  --max-w-prose: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #E89580;
    --accent-hover: #ECA593;
    --accent-active: #F0B5A6;
    --accent-tint: rgba(232, 149, 128, 0.16);

    --fg: #EDEBEB;
    --fg-muted: #ADA8A4;
    --fg-faint: #807A75;

    --bg: #141211;
    --bg-card: #1F1C1A;
    --bg-tertiary: #2A2622;

    --border: #2F2A26;
    --border-strong: #4A413A;

    --success: #6FA37E;
    --danger: #D27468;
    --warning: #DDA653;
    --info: #7397B5;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.4), 0 8px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.5), 0 32px 80px rgba(0, 0, 0, 0.6);
  }
}

/* Manual theme override (set by app.js — wins over media query) */
:root[data-theme="light"] {
  color-scheme: light;
  --accent: #C2563D;
  --accent-hover: #A8482F;
  --accent-active: #8E3B26;
  --accent-tint: rgba(194, 86, 61, 0.12);
  --fg: #1A1818;
  --fg-muted: #5C5552;
  --fg-faint: #8B8480;
  --bg: #FAF7F2;
  --bg-card: #FFFFFF;
  --bg-tertiary: #F2EDE5;
  --border: #E5DED2;
  --border-strong: #C9BFAE;
  --success: #4F8B5F;
  --danger: #B5453A;
  --warning: #C9821C;
  --info: #4A6F8E;
  --shadow-sm: 0 1px 2px rgba(26, 24, 24, 0.04), 0 2px 6px rgba(26, 24, 24, 0.04);
  --shadow-md: 0 2px 4px rgba(26, 24, 24, 0.06), 0 8px 20px rgba(26, 24, 24, 0.06);
  --shadow-lg: 0 4px 8px rgba(26, 24, 24, 0.08), 0 16px 40px rgba(26, 24, 24, 0.10);
  --shadow-xl: 0 8px 16px rgba(26, 24, 24, 0.10), 0 32px 80px rgba(26, 24, 24, 0.14);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --accent: #E89580;
  --accent-hover: #ECA593;
  --accent-active: #F0B5A6;
  --accent-tint: rgba(232, 149, 128, 0.16);
  --fg: #EDEBEB;
  --fg-muted: #ADA8A4;
  --fg-faint: #807A75;
  --bg: #141211;
  --bg-card: #1F1C1A;
  --bg-tertiary: #2A2622;
  --border: #2F2A26;
  --border-strong: #4A413A;
  --success: #6FA37E;
  --danger: #D27468;
  --warning: #DDA653;
  --info: #7397B5;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.4), 0 8px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.5), 0 32px 80px rgba(0, 0, 0, 0.6);
}

/* ---------- 2. Reset + base ---------- */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern", "liga", "calt";
  text-rendering: optimizeLegibility;
}

img, picture { max-width: 100%; height: auto; display: block; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--accent-hover); text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--accent-tint);
  color: var(--accent);
  padding: 1px 6px;
  border-radius: var(--r-sm);
  word-break: break-word;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 700;
}
h1 { font-size: clamp(40px, 6vw, 68px); letter-spacing: -0.03em; }
h2 { font-size: clamp(28px, 3.5vw, 40px); letter-spacing: -0.025em; }
h3 { font-size: clamp(22px, 2.4vw, 28px); }
h4 { font-size: 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--fg-muted); }
p { color: var(--fg); }

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
}
.skip-link:focus {
  position: fixed;
  left: var(--s4);
  top: var(--s4);
  z-index: 1000;
  padding: var(--s3) var(--s5);
  background: var(--bg-card);
  border: 2px solid var(--accent);
  border-radius: var(--r-md);
}

/* ---------- 3. Layout primitives ---------- */

main { display: block; }

section {
  padding: var(--s10) var(--s5);
}
@media (min-width: 768px) {
  section { padding-inline: var(--s7); }
}

.section-heading {
  text-align: center;
  margin-bottom: var(--s8);
  max-width: var(--max-w-prose);
  margin-inline: auto;
}

/* ---------- 4. Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: var(--s5);
  padding: var(--s3) var(--s5);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
@media (min-width: 768px) {
  .site-header { padding: var(--s3) var(--s7); }
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s2);
  font-weight: 600;
  font-size: 17px;
  color: var(--fg);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.brand:hover { color: var(--fg); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: var(--r-sm); }
.brand-name { display: none; }
@media (min-width: 540px) { .brand-name { display: inline; } }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--s5);
  margin-left: auto;
  font-size: 15px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.site-nav a {
  color: var(--fg-muted);
  font-weight: 500;
}
.site-nav a:hover { color: var(--fg); text-decoration: none; }
@media (max-width: 600px) {
  .site-nav { gap: var(--s4); font-size: 14px; }
  .site-nav a:nth-child(3) { display: none; } /* hide Templates on tiny widths */
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--fg-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover { color: var(--fg); border-color: var(--border-strong); }
.theme-toggle .theme-icon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme]) .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-toggle .icon-sun { display: none; }
  :root:not([data-theme]) .theme-toggle .icon-moon { display: block; }
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .theme-toggle .icon-moon { display: none; }
  :root:not([data-theme]) .theme-toggle .icon-sun { display: block; }
}

/* ---------- 5. Hero ---------- */

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s8);
  align-items: center;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-block: var(--s8) var(--s10);
}
@media (min-width: 1024px) {
  .hero { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: var(--s10); }
}

.hero-copy { max-width: 620px; }
.hero h1 {
  font-size: clamp(40px, 5.5vw, 68px);
  margin-bottom: var(--s5);
}
.hero-lede {
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.5;
  color: var(--fg-muted);
  max-width: 56ch;
  margin-bottom: var(--s7);
}
.hero-lede a { color: var(--fg); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 2px; }
.hero-lede a:hover { color: var(--accent); }

.hero-prereq {
  margin-top: var(--s5);
  font-size: 14px;
  color: var(--fg-faint);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
}

/* Hero visual — Mac window with overlapping iPhone */
.hero-visual {
  position: relative;
  isolation: isolate;
  margin: 0 auto;
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16 / 11;
}
.hero-mac {
  position: absolute;
  inset: 0 8% 12% 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.hero-mac img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.hero-iphone {
  position: absolute;
  right: 0;
  bottom: -4%;
  width: 22%;
  aspect-ratio: 9 / 19.5;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-xl), 0 0 0 6px var(--bg-card);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  transform: rotate(2deg);
}
.hero-iphone img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 1023px) {
  .hero-visual { max-width: 600px; aspect-ratio: 16 / 11; }
  .hero-iphone { width: 24%; bottom: -2%; }
}
@media (max-width: 540px) {
  .hero-visual { aspect-ratio: 4 / 3.5; }
  .hero-iphone { width: 28%; right: 2%; }
}

/* ---------- Trust strip ---------- */

.trust-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
  padding-block: var(--s5);
}
.trust-strip ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--s3) var(--s7);
  list-style: none;
  padding: 0 var(--s5);
  max-width: var(--max-w);
  margin: 0 auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* ---------- 'What' section ---------- */

.what {
  max-width: var(--max-w-prose);
  margin: 0 auto;
  text-align: left;
}
.what h2 {
  margin-bottom: var(--s5);
}
.what p {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.6;
  color: var(--fg);
}

/* ---------- Features ---------- */

.features {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-block: var(--s10);
}
.features .section-heading { margin-bottom: var(--s10); }

.feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s7);
  align-items: center;
  margin-bottom: var(--s10);
}
.feature:last-child { margin-bottom: 0; }
@media (min-width: 900px) {
  .feature { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--s9); }
  .feature.feature-flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .feature.feature-flip .feature-text { order: 2; }
  .feature.feature-flip .feature-visual { order: 1; }
}

.feature-text h3 { margin-bottom: var(--s4); }
.feature-text p { color: var(--fg-muted); font-size: 17px; line-height: 1.6; max-width: 52ch; }
.feature-text p code { font-size: 0.88em; }

.feature-visual {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
}
.feature-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
}

/* ---------- iOS / ScarfGo ---------- */

.ios {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--s10);
}
.ios > * { max-width: var(--max-w); margin-inline: auto; }
.ios {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s8);
  align-items: center;
}
@media (min-width: 1024px) {
  .ios {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--s9);
  }
}

.ios-copy { padding-inline: var(--s5); }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  margin-bottom: var(--s4);
}
.ios-copy h2 { margin-bottom: var(--s5); }
.ios-copy > p { color: var(--fg-muted); font-size: 17px; line-height: 1.6; margin-bottom: var(--s5); }
.ios-points {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--s7) 0;
  display: grid;
  gap: var(--s3);
}
.ios-points li {
  position: relative;
  padding-left: var(--s6);
  color: var(--fg);
  font-size: 16px;
}
.ios-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.ios-gallery {
  display: flex;
  gap: var(--s3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--s5) var(--s5) var(--s7);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
@media (min-width: 1024px) {
  .ios-gallery { padding-block: var(--s5); padding-inline: 0 var(--s5); }
}

.phone-frame {
  flex: 0 0 200px;
  scroll-snap-align: start;
  position: relative;
  background: #1A1818;
  border-radius: 28px;
  padding: 8px;
  box-shadow: var(--shadow-md);
}
.phone-frame::before {
  /* Dynamic Island stand-in */
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 18px;
  border-radius: 12px;
  background: #0a0a0a;
  z-index: 1;
}
.phone-frame img {
  width: 100%;
  height: auto;
  border-radius: 22px;
  display: block;
  background: var(--bg-card);
}
@media (min-width: 600px) {
  .phone-frame { flex-basis: 220px; }
}

/* ---------- Why native ---------- */

.why {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-block: var(--s10);
}
.why-grid {
  display: grid;
  gap: var(--s5);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .why-grid { grid-template-columns: repeat(3, 1fr); } }

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s7);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.why-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.why-card h3 {
  font-size: 22px;
  margin-bottom: var(--s4);
  color: var(--accent);
}
.why-card p { color: var(--fg-muted); font-size: 16px; line-height: 1.55; }

/* ---------- Templates teaser ---------- */

.templates {
  max-width: var(--max-w-prose);
  margin: 0 auto;
  text-align: center;
  padding-block: var(--s9);
}
.templates h2 { margin-bottom: var(--s4); }
.templates p { color: var(--fg-muted); margin-bottom: var(--s6); font-size: 17px; }

/* ---------- Download ---------- */

.download {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-block: var(--s10);
}
.download-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s5);
}
@media (min-width: 720px) { .download-grid { grid-template-columns: 1fr 1fr; } }

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--s8);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.download-card h3 { font-size: 26px; margin-bottom: var(--s2); }
.download-meta {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: var(--s5);
}
.download-points {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--s7);
  display: grid;
  gap: var(--s2);
  font-size: 15px;
  color: var(--fg-muted);
}
.download-points li::before {
  content: "✓ ";
  color: var(--success);
  font-weight: 700;
}
.download-card .btn { margin-top: auto; }

.download-prereq {
  margin-top: var(--s7);
  text-align: center;
  color: var(--fg-muted);
  font-size: 15px;
  max-width: var(--max-w-prose);
  margin-inline: auto;
}

/* ---------- FAQ ---------- */

.faq {
  max-width: 820px;
  margin: 0 auto;
  padding-block: var(--s10);
}
.faq-list {
  display: grid;
  gap: var(--s2);
}
.faq details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--s5) var(--s6);
  transition: border-color 0.15s ease;
}
.faq details[open] {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
  color: var(--fg);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s4);
  padding: var(--s2) 0;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  color: var(--fg-faint);
  transition: transform 0.2s ease, color 0.15s ease;
  flex-shrink: 0;
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); color: var(--accent); }
.faq summary:hover { color: var(--accent); }
.faq details > div {
  padding-top: var(--s4);
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.6;
}
.faq details > div p { color: inherit; }

/* ---------- 6. Components ---------- */

.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: var(--s4) var(--s6);
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  line-height: 1.2;
  border: 1px solid transparent;
  min-height: 48px;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-meta {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin-top: 2px;
  opacity: 0.8;
}

.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
}
.btn-primary:hover { background: var(--accent-hover); color: #FFFFFF; }
.btn-primary:active { background: var(--accent-active); }

.btn-secondary {
  background: var(--bg-card);
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-secondary:hover { color: var(--fg); border-color: var(--accent); background: var(--bg-card); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border);
  padding: var(--s9) var(--s5) var(--s8);
  margin-top: var(--s8);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s8);
}
@media (min-width: 720px) {
  .footer-inner { grid-template-columns: 1fr 2fr; gap: var(--s9); }
}
.footer-brand { display: flex; align-items: flex-start; gap: var(--s4); }
.footer-brand img { width: 40px; height: 40px; border-radius: var(--r-sm); flex-shrink: 0; }
.footer-brand p { font-size: 15px; color: var(--fg-muted); }
.footer-brand a { color: var(--fg); }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--s7);
}
.footer-nav h4 { margin-bottom: var(--s3); color: var(--fg); font-size: 13px; }
.footer-nav ul { list-style: none; padding: 0; display: grid; gap: var(--s2); }
.footer-nav a { color: var(--fg-muted); font-size: 14px; }
.footer-nav a:hover { color: var(--accent); }

/* ---------- 7. Responsive tweaks ---------- */

@media (max-width: 540px) {
  section { padding-block: var(--s9); }
  .hero { padding-block: var(--s7) var(--s9); }
  .features { padding-block: var(--s9); }
  .feature { gap: var(--s5); margin-bottom: var(--s9); }
  .ios { padding-block: var(--s9); }
  .why { padding-block: var(--s9); }
  .download { padding-block: var(--s9); }
  .faq { padding-block: var(--s9); }
  .btn { width: 100%; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .download-card { padding: var(--s6); }
  .why-card { padding: var(--s6); }
}