:root {
  --bg: #0f1115;
  --bg-alt: #161a21;
  --fg: #e8ebf0;
  --fg-dim: #a3abb8;
  --accent: #c23c2a;
  --accent-hover: #e14a35;
  --border: #262b34;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
}

a {
  color: var(--accent-hover);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
}

.hero {
  background: linear-gradient(180deg, var(--bg-alt), var(--bg));
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--fg);
  text-decoration: none;
}

.brand:hover { text-decoration: none; }

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  color: var(--fg-dim);
}

.nav-cta {
  color: var(--fg) !important;
  background: var(--accent);
  padding: 8px 14px;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.language-switcher {
  position: relative;
  color: var(--fg-dim);
}

.language-switcher summary {
  cursor: pointer;
  list-style: none;
  white-space: nowrap;
}

.language-switcher summary::-webkit-details-marker {
  display: none;
}

.language-switcher summary::after {
  content: " ▾";
}

.language-switcher[open] summary::after {
  content: " ▴";
}

.language-menu {
  position: absolute;
  z-index: 10;
  top: calc(100% + 10px);
  right: 0;
  min-width: 190px;
  padding: 8px;
  display: grid;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.language-menu a {
  padding: 7px 9px;
  border-radius: 6px;
  color: var(--fg-dim);
  white-space: nowrap;
}

.language-menu a:hover,
.language-menu a[aria-current="page"] {
  color: var(--fg);
  background: var(--border);
  text-decoration: none;
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  text-align: center;
}

.hero-inner .hero-content {
  max-width: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.hero-inner .cta-row {
  justify-content: flex-start;
}

.hero-content h1 {
  font-size: 2.25rem;
}

.hero-tagline {
  color: var(--fg);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 12px;
}

.subhead {
  color: var(--fg-dim);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 16px;
  color: var(--fg-dim);
  font-size: 0.9rem;
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-inner .hero-content {
  flex: 1 1 420px;
  padding: 0;
  text-align: left;
}

.hero-shot {
  flex: 0 1 280px;
}

.hero-shot img {
  width: 100%;
  max-width: 280px;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.45));
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
}

.btn-primary {
  background: var(--accent);
  color: #fff !important;
}

.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  color: var(--fg) !important;
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--fg-dim);
  text-decoration: none;
}

.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px;
}

.section h2 {
  font-size: 1.6rem;
  margin-bottom: 32px;
  text-align: center;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  min-width: 0;
}

.steps li > div {
  min-width: 0;
}

.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.steps h3 {
  font-size: 1.05rem;
}

.steps p {
  color: var(--fg-dim);
  margin: 0 0 12px;
}

.step-shot {
  display: block;
  width: 100%;
  max-width: 220px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.step-shot + .step-shot {
  margin-top: 12px;
}

.step-shot-wide,
.step-pair-wide {
  max-width: 360px;
  height: 280px;
  object-fit: contain;
  background: var(--bg-alt);
  padding: 12px;
}

.steps-note {
  max-width: 720px;
  margin: 40px auto 0;
  text-align: center;
  color: var(--fg-dim);
  font-size: 0.9rem;
}

.section-callout {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.callout-intro {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
  color: var(--fg-dim);
}

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

.callout-sequence figure {
  margin: 0;
  min-width: 0;
}

.callout-sequence img {
  width: 100%;
  max-width: 220px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: block;
  margin: 0 auto 12px;
}

.callout-sequence figcaption {
  color: var(--fg-dim);
  font-size: 0.9rem;
  text-align: center;
}

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

.feature {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
}

.feature h3 {
  font-size: 1.05rem;
}

.feature p {
  color: var(--fg-dim);
  margin: 0;
}

#privacy p {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  color: var(--fg-dim);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-list details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
}

.faq-list p {
  color: var(--fg-dim);
  margin: 12px 0 0;
}

.section-download {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

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

.download-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  text-align: center;
}

.download-card p {
  color: var(--fg-dim);
}

.download-copy-mobile {
  display: none;
}

.qr {
  width: 140px;
  height: 140px;
  margin: 12px auto;
  display: block;
  border-radius: 8px;
  background: #fff;
}

.footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 64px;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-bottom: 16px;
}

.footer-links a {
  color: var(--fg-dim);
}

.footer-link-button {
  padding: 0;
  border: 0;
  color: var(--fg-dim);
  background: transparent;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.footer-note {
  color: var(--fg-dim);
  font-size: 0.85rem;
  margin: 0;
}

.consent-banner {
  position: fixed;
  z-index: 1000;
  right: 20px;
  bottom: 20px;
  left: 20px;
  max-width: 760px;
  margin: 0 auto;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #161a21;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.consent-banner[hidden] {
  display: none;
}

.consent-copy {
  flex: 1;
  min-width: 0;
}

.consent-copy p {
  margin: 4px 0 0;
  color: var(--fg-dim);
  font-size: 0.9rem;
}

.consent-actions {
  display: flex;
  flex-shrink: 0;
  gap: 10px;
}

.consent-actions .btn {
  border: 0;
  cursor: pointer;
  white-space: nowrap;
}

.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px;
}

.doc h1 { font-size: 1.8rem; }
.doc h2 { font-size: 1.2rem; text-align: left; margin-top: 2em; }
.doc h3 { font-size: 1rem; text-align: left; margin-top: 1.5em; }
.doc p, .doc li { color: var(--fg-dim); }
.doc li + li { margin-top: 0.55em; }

.doc-nav,
.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.doc-nav { margin-bottom: 32px; }

.legal-links {
  padding-top: 20px;
  margin-top: 40px;
  border-top: 1px solid var(--border);
}

.guide-hero .hero-shot { flex-basis: 420px; }
.guide-hero .hero-shot img { max-width: 500px; }
.guide-hero .hero-shot img + img { margin-top: 18px; }

.guide-intro {
  max-width: 760px;
  margin: 0 auto 40px;
  color: var(--fg-dim);
  text-align: center;
}

.guide-steps { grid-template-columns: repeat(3, 1fr); }

.guide-panel {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
}

.guide-panel p:last-child { margin-bottom: 0; }

@media (max-width: 720px) {
  .steps,
  .guide-steps,
  .feature-grid,
  .download-grid,
  .callout-sequence {
    grid-template-columns: 1fr;
  }

  .nav {
    padding: 16px 20px;
  }

  .brand {
    font-size: 1.05rem;
  }

  .nav-links {
    gap: 14px;
    font-size: 0.9rem;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .language-menu a {
    display: block !important;
  }

  .nav-cta {
    padding: 7px 12px;
    font-size: 0.9rem;
  }

  .download-copy-desktop,
  .qr {
    display: none;
  }

  .download-copy-mobile {
    display: block;
  }

  .callout-sequence img {
    max-width: 160px;
  }

  .hero-content h1 {
    font-size: 1.7rem;
  }

  .hero-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .hero-inner .hero-content {
    width: 100%;
    text-align: center;
  }

  .hero-shot {
    width: 100%;
    min-width: 0;
  }

  .guide-hero .hero-shot {
    flex-basis: auto;
  }

  .guide-hero .hero-shot img {
    max-width: 100%;
  }

  .hero-inner .cta-row {
    justify-content: center;
  }

  .hero-shot {
    order: -1;
  }

  .consent-banner {
    right: 12px;
    bottom: 12px;
    left: 12px;
    padding: 16px;
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
  }

  .consent-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}