/* SilverCare — shared landing styles. Mirrors the app design system (architecture §14):
   large type, high contrast, generous touch targets, warm and simple. */
:root {
  --sc-primary: #1F5FA6;
  --sc-primary-dark: #1F3864;
  --sc-success: #2E7D32;
  --sc-warning: #E8820C;
  --sc-danger: #D32F2F;
  --sc-bg: #EEF2F7;
  --sc-surface: #FFFFFF;
  --sc-text: #1A2230;
  --sc-text-secondary: #5C6672;
  --sc-border: #E6EBF2;
  --sc-radius-md: 16px;
  --sc-radius-lg: 22px;
  --sc-shadow: 0 4px 14px rgba(31, 59, 100, 0.12);
  --sc-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--sc-bg);
  color: var(--sc-text);
  font-family: var(--sc-font);
  font-size: 20px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 20px 64px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
/* The logo + name link back to the home page on every screen. */
.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand .logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: url("/icon.png") center / cover no-repeat, var(--sc-primary-dark);
  display: grid;
  place-items: center;
  color: transparent; /* hides the fallback "＋" glyph once the icon loads */
  font-size: 26px;
  box-shadow: var(--sc-shadow);
}
.brand .name {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--sc-primary-dark);
}

/* Language switch (EN / VN) — injected by i18n.js into .brand */
.lang-switch {
  margin-left: auto;
  display: inline-flex;
  border: 1px solid var(--sc-border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--sc-surface);
}
.lang-switch button {
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  min-height: 44px;
  padding: 8px 16px;
  color: var(--sc-text-secondary);
  cursor: pointer;
  transition: background 120ms, color 120ms;
}
.lang-switch button.active {
  background: var(--sc-primary);
  color: #fff;
}

.card {
  background: var(--sc-surface);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 28px 24px;
  margin-bottom: 20px;
}

h1 {
  font-size: 30px;
  line-height: 1.2;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 22px;
  margin: 0 0 8px;
}
p { margin: 0 0 14px; color: var(--sc-text-secondary); }
.lead { color: var(--sc-text); font-size: 20px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #E2ECFB;
  color: var(--sc-primary-dark);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 16px;
  font-weight: 700;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 60px;
  border: none;
  border-radius: var(--sc-radius-lg);
  font-family: inherit;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  margin-bottom: 12px;
  transition: transform 120ms cubic-bezier(0.2, 0, 0, 1), filter 120ms;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--sc-primary); color: #fff; }
.btn-dark { background: #111; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--sc-primary);
  border: 2px solid var(--sc-border);
}

.store-row { display: flex; flex-direction: column; gap: 12px; }

.code-box {
  background: var(--sc-bg);
  border: 2px dashed #B9C6DA;
  border-radius: var(--sc-radius-md);
  padding: 16px;
  text-align: center;
  margin: 16px 0;
}
.code-box .label { font-size: 15px; color: var(--sc-text-secondary); margin-bottom: 6px; }
.code-box .code {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--sc-primary-dark);
  font-variant-numeric: tabular-nums;
}

.state { text-align: center; padding: 24px 0; }
.state .emoji { font-size: 56px; display: block; margin-bottom: 12px; }
.state.warning { color: var(--sc-warning); }
.state.danger { color: var(--sc-danger); }

.foot {
  margin-top: auto;
  padding-top: 24px;
  font-size: 15px;
  color: var(--sc-text-secondary);
  text-align: center;
}
.foot a { color: var(--sc-primary); }

.skeleton {
  background: linear-gradient(90deg, #e9eef5 25%, #f4f7fb 50%, #e9eef5 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: 8px;
  height: 20px;
  margin: 10px 0;
}
@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

/* ---------- Landing page (index) ---------- */
.wrap.wide { max-width: 1040px; }

.hero {
  background: linear-gradient(150deg, var(--sc-primary-dark) 0%, var(--sc-primary) 85%);
  color: #fff;
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 36px 26px;
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  overflow: hidden;
}
.hero .pill { background: rgba(255, 255, 255, 0.16); color: #fff; }
.hero h1 { color: #fff; font-size: 36px; margin-top: 14px; max-width: 495px; }
.hero .lead { color: #d9e4f5; font-size: 21px; max-width: 500px; }
.hero-media { display: flex; justify-content: center; }
.hero-media img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 18px 44px rgba(10, 20, 40, 0.45);
  transform: rotate(2deg);
}
@media (min-width: 860px) {
  .hero { grid-template-columns: 1.7fr 0.9fr; padding: 48px 44px; }
  .hero h1 { font-size: 44px; }
}

/* Store badges — MixerCloud-style pill pair on the dark gradient:
   white TestFlight (now) + black Google Play (soon), equal width, single line. */
.store-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: stretch;
  margin: 22px 0 12px;
  max-width: 720px;
}
.store-btn {
  flex: 1 1 0;
  min-width: 240px;
  max-width: 340px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 60px;
  padding: 0 28px;
  border-radius: 30px;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 120ms cubic-bezier(0.2, 0, 0, 1), box-shadow 160ms ease;
}
.store-btn .ico { display: flex; flex: none; }
.store-btn .ico svg { display: block; height: 22px; width: auto; }
.store-btn .label { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.store-btn .label b { font-weight: 800; }
/* Primary — TestFlight: white pill with brand-coloured logo + text. */
.store-btn--primary {
  background: #fff;
  color: var(--sc-primary-dark);
  box-shadow: 0 8px 22px rgba(10, 20, 40, 0.28);
}
.store-btn--primary .ico svg { fill: var(--sc-primary-dark); }
.store-btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(10, 20, 40, 0.36); }
.store-btn--primary:active { transform: scale(0.97); }
/* Secondary — Google Play (coming soon): black pill, multi-colour Play glyph. */
.store-btn--secondary {
  background: #000;
  color: #fff;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28);
  cursor: default;
}
.soon-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px dashed rgba(255, 255, 255, 0.5);
  color: #d9e4f5;
  font-size: 15px;
  font-weight: 700;
}
.soon-chip.on-light { border-color: #b9c6da; color: var(--sc-text-secondary); }
.free-note { font-size: 15px; color: #bfd2ec; margin: 0; }

/* Compact gradient header shared by sub-pages (privacy, terms, download, invite, 404)
   so they carry the same visual frame as the index hero. */
.page-hero {
  background: linear-gradient(150deg, var(--sc-primary-dark), var(--sc-primary));
  color: #fff;
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 30px 26px;
  margin-bottom: 20px;
}
.page-hero .pill { background: rgba(255, 255, 255, 0.16); color: #fff; margin-bottom: 12px; }
.page-hero h1 { color: #fff; margin: 0 0 6px; font-size: 30px; }
.page-hero p { color: #d9e4f5; margin: 0; font-size: 17px; }
.page-hero .store-cta { margin: 20px 0 10px; }
.page-hero .free-note { margin-top: 4px; }

/* Section headings */
.section { margin: 36px 0 16px; }
.section h2 { font-size: 28px; margin: 0 0 6px; letter-spacing: -0.01em; }
.section .sub { margin: 0; font-size: 18px; }

/* How it works — 3 numbered steps */
.steps { display: grid; gap: 16px; grid-template-columns: 1fr; }
.step {
  background: var(--sc-surface);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 22px;
}
.step .num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #e2ecfb;
  color: var(--sc-primary-dark);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 12px;
}
.step h3 { margin: 0 0 6px; font-size: 20px; }
.step p { margin: 0; font-size: 17px; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }

/* Feature grid */
.features { display: grid; gap: 16px; grid-template-columns: 1fr; }
.feature {
  display: flex;
  gap: 14px;
  background: var(--sc-surface);
  border: 1px solid var(--sc-border);
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 20px;
}
.feature .ico {
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #e2ecfb;
  display: grid;
  place-items: center;
  font-size: 26px;
}
.feature h3 { margin: 0 0 4px; font-size: 19px; }
.feature p { margin: 0; font-size: 16.5px; }
@media (min-width: 720px) { .features { grid-template-columns: 1fr 1fr; } }

/* "Designed for 65+" checklist */
.checks { display: grid; gap: 12px; grid-template-columns: 1fr; margin: 14px 0 0; padding: 0; list-style: none; }
.checks li { display: flex; gap: 10px; font-size: 18px; color: var(--sc-text); align-items: flex-start; }
.checks li::before { content: "✓"; color: var(--sc-success); font-weight: 800; }
@media (min-width: 720px) { .checks { grid-template-columns: 1fr 1fr; } }

/* Screenshot gallery — horizontal scroll */
.gallery {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 6px 2px 18px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.gallery img {
  width: 230px;
  height: auto;
  flex: none;
  border-radius: 20px;
  border: 1px solid var(--sc-border);
  box-shadow: var(--sc-shadow);
  scroll-snap-align: start;
}

/* Bottom call-to-action panel */
.cta-panel {
  background: linear-gradient(150deg, var(--sc-primary-dark), var(--sc-primary));
  color: #fff;
  border-radius: var(--sc-radius-lg);
  box-shadow: var(--sc-shadow);
  padding: 34px 26px;
  text-align: center;
  margin-top: 36px;
}
.cta-panel h2 { color: #fff; font-size: 30px; margin: 0 0 8px; }
.cta-panel p { color: #d9e4f5; max-width: 560px; margin: 0 auto 8px; }
.cta-panel .store-cta { justify-content: center; margin-left: auto; margin-right: auto; }

.disclaimer { font-size: 14px; color: var(--sc-text-secondary); max-width: 640px; margin: 12px auto 0; }