:root {
  color-scheme: dark;
  --bg: #080808;
  --surface: #151515;
  --surface-strong: #1d1d1d;
  --text: #f5efe3;
  --muted: #c8beb0;
  --subtle: #8d857a;
  --line: #3a3936;
  --gold: #d6ad28;
  --gold-soft: #756019;
  --green: #39a24a;
  --shadow: 0 28px 80px rgba(0, 0, 0, .5);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
  min-height: 76px;
  padding: 0 5vw;
  background: rgba(10, 10, 10, .86);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  backdrop-filter: blur(16px);
}

.brand {
  order: 1;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
}

.site-nav {
  order: 2;
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-weight: 650;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--gold);
}

.language-switch {
  order: 3;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  color: var(--muted);
  font-size: .82rem;
  font-weight: 850;
}

.language-switch a {
  min-width: 34px;
  padding: 6px 8px;
  border-radius: 6px;
  text-align: center;
  text-decoration: none;
}

.language-switch a:hover {
  color: var(--text);
}

.language-switch a[aria-current="true"] {
  background: var(--gold);
  color: #171309;
}

.nav-toggle {
  order: 4;
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
}

.hero {
  position: relative;
  min-height: min(760px, calc(100vh - 24px));
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 0 5vw 72px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.hero-bg,
.hero-bg img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .58;
  filter: saturate(1.08) contrast(1.08);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(8, 8, 8, .96) 0%, rgba(8, 8, 8, .78) 42%, rgba(8, 8, 8, .38) 100%),
    linear-gradient(0deg, rgba(8, 8, 8, .96) 0%, rgba(8, 8, 8, .12) 58%, rgba(8, 8, 8, .78) 100%);
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: .84rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  line-height: .98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.22rem;
  line-height: 1.2;
}

.hero-copy {
  width: min(660px, 100%);
  margin-bottom: 22px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: min(720px, 100%);
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.hero-benefits li {
  padding: 9px 12px;
  border: 1px solid rgba(214, 173, 40, .38);
  border-radius: 999px;
  background: rgba(18, 18, 18, .58);
  color: var(--text);
  font-size: .95rem;
  font-weight: 800;
  box-shadow: 0 10px 28px rgba(0, 0, 0, .22);
}

.free-note,
.tool-note,
.qr-status {
  color: var(--muted);
}

.free-note {
  display: inline-grid;
  gap: 2px;
  width: fit-content;
  max-width: 100%;
  margin: 0 0 22px;
  padding: 10px 14px;
  background: rgba(214, 173, 40, .12);
  border: 1px solid rgba(214, 173, 40, .42);
  border-radius: var(--radius);
  font-weight: 750;
}

.free-note small {
  color: var(--subtle);
  font-size: .84rem;
  font-weight: 650;
}

.hero-actions,
.tool-actions,
.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  text-decoration: none;
}

.button.primary {
  background: var(--gold);
  border-color: var(--gold);
  color: #171309;
}

.button.secondary {
  background: rgba(255, 255, 255, .07);
  color: var(--text);
}

.button.disabled {
  pointer-events: none;
  opacity: .48;
}

.section {
  width: min(1180px, 90vw);
  margin: 0 auto;
  padding: 96px 0;
}

.intro-grid,
.designer,
.safety,
.web-tool-teaser,
.qr-tool,
.cta {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: 56px;
  align-items: center;
}

.intro-grid p,
.designer-copy p,
.safety p,
.web-tool-teaser p,
.document p,
.document li {
  color: var(--muted);
}

.web-tool-teaser {
  align-items: end;
  padding-top: 72px;
  padding-bottom: 72px;
}

.web-tool-teaser .button {
  justify-self: end;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.feature-list article {
  min-height: 180px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feature-list article h3::before {
  content: "";
  display: block;
  width: 34px;
  height: 5px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: var(--gold);
}

.designer {
  width: 100%;
  max-width: none;
  padding: 96px 5vw;
  background: #11110f;
  border-top: 1px solid rgba(255, 255, 255, .08);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.designer-copy {
  max-width: 560px;
  justify-self: end;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .52em;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(57, 162, 74, .14);
}

.phone-pair {
  position: relative;
  min-height: 640px;
}

.phone {
  position: absolute;
  width: min(310px, 42vw);
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, .16);
  box-shadow: var(--shadow);
  background: #111;
}

.phone.one {
  left: 0;
  top: 0;
  transform: rotate(-4deg);
}

.phone.two {
  left: 260px;
  top: 96px;
  transform: rotate(5deg);
}

.safety {
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.safety p {
  margin: 0;
  padding: 28px;
  border: 1px solid rgba(57, 162, 74, .42);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(57, 162, 74, .18), rgba(214, 173, 40, .08));
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.screenshots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.screenshots figure {
  margin: 0;
}

.screenshots img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .35);
}

.screenshots figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-weight: 750;
}

.cta {
  align-items: end;
  padding-top: 52px;
}

.cta .button {
  justify-self: end;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 5vw;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--gold);
}

.document-page {
  min-height: calc(100vh - 76px);
  padding: 76px 5vw 96px;
  background:
    radial-gradient(circle at top right, rgba(214, 173, 40, .12), transparent 30vw),
    var(--bg);
}

.document {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.document h1 {
  font-size: clamp(2.1rem, 5vw, 3.7rem);
}

.document h2 {
  margin-top: 36px;
  font-size: 1.45rem;
}

.document ul {
  padding-left: 22px;
}

.document a {
  color: var(--gold);
}

.tool-hero {
  padding: 104px 5vw 52px;
  background:
    radial-gradient(circle at top right, rgba(214, 173, 40, .16), transparent 34vw),
    var(--bg);
}

.tool-hero h1,
.tool-hero p {
  width: min(820px, 100%);
}

.tool-hero p:not(.eyebrow) {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.qr-tool {
  align-items: start;
  padding-top: 44px;
}

.tool-panel,
.qr-preview-card {
  padding: clamp(22px, 4vw, 36px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.qr-form {
  display: grid;
  gap: 18px;
}

.qr-form label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-weight: 800;
}

.qr-form textarea,
.qr-form select,
.qr-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0f0f0f;
  color: var(--text);
  font: inherit;
}

.qr-form input {
  min-height: 48px;
  padding: 0 12px;
}

.qr-form textarea {
  min-height: 170px;
  padding: 14px;
  resize: vertical;
}

.qr-form textarea[rows="3"] {
  min-height: 110px;
}

.qr-form select {
  min-height: 48px;
  padding: 0 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.wide-field {
  grid-column: 1 / -1;
}

.inline-check {
  display: flex !important;
  align-items: center;
  gap: 10px !important;
  min-height: 48px;
  align-self: end;
}

.inline-check input {
  width: 20px;
  min-height: 20px;
}

.field-hint {
  margin: 10px 0 0;
  color: var(--subtle);
  font-size: .94rem;
}

.char-counter {
  justify-self: end;
  margin-top: -2px;
  color: var(--subtle);
  font-size: .78rem;
  font-weight: 700;
}

.char-counter.is-full {
  color: var(--gold);
}

.code-form [hidden] {
  display: none !important;
}

.qr-output {
  display: grid;
  place-items: center;
  min-height: 340px;
  padding: 20px;
  background: #101010;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.qr-output canvas {
  width: min(100%, 420px);
  height: auto;
  border-radius: 4px;
}

.qr-output p {
  margin: 0;
  color: var(--subtle);
  text-align: center;
}

.qr-status {
  margin: 18px 0 0;
}

.qr-status.error {
  color: #ffb4a8;
}

.payload-preview {
  margin-top: 18px;
  padding: 16px;
  background: #101010;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.payload-preview h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.payload-preview pre {
  max-height: 220px;
  margin: 0;
  overflow: auto;
  color: var(--muted);
  font: .88rem/1.5 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.notice {
  padding: 18px;
  color: var(--muted);
  background: rgba(214, 173, 40, .12);
  border: 1px solid rgba(214, 173, 40, .42);
  border-radius: var(--radius);
}

@media (max-width: 940px) {
  .intro-grid,
  .designer,
  .safety,
  .web-tool-teaser,
  .qr-tool,
  .cta {
    grid-template-columns: 1fr;
  }

  .designer-copy {
    justify-self: start;
  }

  .phone-pair {
    min-height: 540px;
  }

  .phone.one {
    left: 3vw;
  }

  .phone.two {
    left: min(280px, 36vw);
  }

  .screenshots {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta .button {
    justify-self: start;
  }

  .web-tool-teaser .button {
    justify-self: start;
  }
}

@media (max-width: 720px) {
  .site-header {
    min-height: 68px;
    gap: 10px;
    padding: 0 4vw;
  }

  .brand span {
    max-width: 42vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .language-switch {
    font-size: .76rem;
  }

  .language-switch a {
    min-width: 30px;
    padding: 5px 6px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 5vw;
    right: 5vw;
    top: calc(100% + 10px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: var(--surface-strong);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .hero {
    min-height: 680px;
    padding-bottom: 48px;
  }

  .hero-benefits {
    gap: 8px;
    margin-bottom: 20px;
  }

  .hero-benefits li {
    padding: 8px 10px;
    font-size: .86rem;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(8, 8, 8, .98) 0%, rgba(8, 8, 8, .72) 64%, rgba(8, 8, 8, .52) 100%);
  }

  .feature-list,
  .screenshots {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 68px 0;
  }

  .tool-hero {
    padding-top: 84px;
  }

  .designer {
    padding: 68px 5vw;
  }

  .phone-pair {
    display: grid;
    min-height: auto;
    gap: 18px;
  }

  .phone {
    position: static;
    width: min(360px, 100%);
    transform: none !important;
  }

  .site-footer {
    flex-direction: column;
  }
}