:root {
  color-scheme: dark;
  --background: #0d1012;
  --surface: #181c20;
  --surface-hover: #22282e;
  --surface-soft: #121619;
  --text: #f5f7f8;
  --muted: #b9c0c6;
  --accent: #f28c28;
  --accent-soft: rgba(242, 140, 40, 0.14);
  --border: #343b42;
  --max-width: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--background); color: var(--text); }
body { margin: 0; min-height: 100vh; line-height: 1.6; background: radial-gradient(circle at 82% 4%, rgba(242, 140, 40, 0.1), transparent 28rem), var(--background); }
img { display: block; max-width: 100%; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, select:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.container { width: min(calc(100% - 32px), var(--max-width)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 14px; border-radius: 8px; background: var(--accent); color: #111315; font-weight: 800; text-decoration: none; transform: translateY(-180%); transition: transform 0.15s ease; }
.skip-link:focus { transform: translateY(0); }
.site-header { border-bottom: 1px solid var(--border); background: #000; position: sticky; top: 0; z-index: 10; }
.site-header .container { min-height: 104px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.header-layout { width: min(calc(100% - 32px), var(--max-width)); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.brand { display: inline-flex; align-items: center; color: var(--text); text-decoration: none; flex: 0 0 auto; overflow: visible; background: transparent; }
.brand img { width: clamp(260px, 24vw, 360px); height: auto; max-height: 86px; object-fit: contain; object-position: left center; transform: scale(1.06); transform-origin: left center; background: transparent; }
nav { display: flex; flex-wrap: wrap; gap: 18px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 600; }
nav a:hover, nav a:focus-visible { color: var(--text); }
.language-picker { position: relative; display: inline-flex; align-items: center; flex: 0 0 auto; }
.language-picker::before { content: "🌐"; position: absolute; left: 11px; pointer-events: none; font-size: 0.95rem; }
.language-picker select { min-height: 40px; padding: 8px 34px 8px 34px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; font-weight: 700; cursor: pointer; }
.language-picker select:hover { border-color: var(--accent); }
.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr); align-items: center; gap: clamp(42px, 8vw, 100px); padding-block: 86px 82px; }
.hero-copy { min-width: 0; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
h1 { max-width: 820px; margin: 0 0 20px; font-size: clamp(2.5rem, 7vw, 5rem); line-height: 1.02; letter-spacing: -0.045em; }
h2, h3 { line-height: 1.25; }
.lead, .section-lead { max-width: 720px; color: var(--muted); font-size: 1.22rem; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 20px; border: 1px solid var(--accent); border-radius: 11px; background: var(--accent); color: #111315; font-weight: 800; text-decoration: none; }
.button.secondary { background: transparent; color: var(--text); border-color: var(--border); }
.button:hover, .button:focus-visible { filter: brightness(1.08); transform: translateY(-1px); }
.store-actions { gap: 12px; }
.store-badge { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; height: 48px; overflow: hidden; border-radius: 8px; text-decoration: none; transition: transform 0.15s ease, filter 0.15s ease; }
.store-badge:hover, .store-badge:focus-visible { filter: brightness(1.08); transform: translateY(-1px); }
.store-badge img { display: block; width: auto; max-width: none; }
.store-badge-apple img { height: 48px; }
.store-badge-google { width: 161px; height: 48px; }
.store-badge-google img { height: 62px; width: auto; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--muted); font-weight: 700; }
.hero-points li::before { content: "✓"; color: var(--accent); margin-right: 8px; }
.hero-visual { display: flex; justify-content: center; }
.phone-frame { position: relative; overflow: hidden; width: min(100%, 300px); padding: 10px; border: 1px solid #4a525a; border-radius: 34px; background: #070809; box-shadow: 0 26px 70px rgba(0, 0, 0, 0.45); }
.phone-frame::before { content: ""; position: absolute; top: 16px; left: 50%; z-index: 2; width: 74px; height: 8px; border-radius: 99px; background: rgba(0, 0, 0, 0.72); transform: translateX(-50%); }
.phone-frame img { width: 100%; height: auto; object-fit: contain; aspect-ratio: auto; border-radius: 25px; }
.featured-phone { width: min(100%, 330px); transform: rotate(1.5deg); box-shadow: 0 32px 100px rgba(0, 0, 0, 0.5), 0 0 0 16px var(--accent-soft); }
.feature-section { padding-block: 22px 84px; }
.feature-section > h2, .showcase-section h2 { margin: 0; font-size: clamp(2rem, 4vw, 3rem); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 30px; }
.feature { padding: 24px; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(145deg, var(--surface), var(--surface-soft)); }
.feature h3 { margin-top: 0; }
.feature p { color: var(--muted); margin-bottom: 0; }
.showcase-section { padding-block: 82px 92px; border-block: 1px solid var(--border); background: rgba(255, 255, 255, 0.018); }
.screenshot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; align-items: start; margin-top: 42px; }
.screenshot-card { margin: 0; }
.screenshot-card .phone-frame { width: 100%; max-width: 270px; padding: 7px; border-radius: 28px; box-shadow: 0 20px 55px rgba(0, 0, 0, 0.35); margin-inline: auto; }
.screenshot-card .phone-frame img { width: 100%; height: auto; object-fit: contain; aspect-ratio: auto; border-radius: 21px; }
.screenshot-card figcaption { display: grid; gap: 4px; margin-top: 18px; }
.screenshot-card figcaption strong { font-size: 1.06rem; }
.screenshot-card figcaption span { color: var(--muted); font-size: 0.95rem; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; padding-block: 72px 90px; }
.card { display: block; padding: 24px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); color: var(--text); text-decoration: none; }
.card:hover, .card:focus-visible { background: var(--surface-hover); border-color: var(--accent); transform: translateY(-2px); }
.card h2 { margin-top: 0; font-size: 1.25rem; }
.card p { color: var(--muted); margin-bottom: 0; }
.content { padding-block: 56px 80px; max-width: 800px; }
.content h1 { font-size: clamp(2rem, 6vw, 3.5rem); }
.content h2 { margin-top: 40px; }
.content p, .content li { color: var(--muted); }
.notice { padding: 18px 20px; border-left: 4px solid var(--accent); background: var(--surface); border-radius: 8px; }
.contact-address { font-size: clamp(1.15rem, 3vw, 1.5rem); font-weight: 800; }
footer { border-top: 1px solid var(--border); color: var(--muted); padding-block: 30px; }

@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; }
}

@media (max-width: 1040px) {
  .header-actions { gap: 12px; }
  nav { gap: 12px; }
  nav a { font-size: 0.95rem; }
  .language-picker select { max-width: 126px; }
}

@media (max-width: 900px) {
  .site-header .container { min-height: 94px; gap: 20px; }
  .header-actions { flex-direction: column; align-items: flex-end; }
  .brand img { width: clamp(220px, 34vw, 300px); max-height: 76px; }
  .hero { grid-template-columns: 1fr; text-align: center; padding-block: 68px 70px; }
  .hero-copy { display: grid; justify-items: center; }
  .hero-points { justify-content: center; }
  .featured-phone { width: min(72vw, 320px); transform: none; }
  .screenshot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .site-header { position: static; }
  .site-header .container { align-items: flex-start; flex-direction: column; padding-block: 16px; }
  .header-actions { width: 100%; align-items: stretch; }
  .brand { width: 100%; }
  .brand img { width: min(88vw, 330px); max-height: none; transform: none; }
  nav { gap: 10px 16px; }
  .language-picker { width: 100%; }
  .language-picker select { width: 100%; max-width: none; }
  .hero { padding-block: 54px 58px; }
  h1 { font-size: clamp(2.35rem, 13vw, 3.9rem); }
  .showcase-section { padding-block: 64px; }
}

@media (max-width: 520px) {
  .screenshot-grid { grid-template-columns: 1fr; }
  .screenshot-card { max-width: 320px; margin-inline: auto; }
  .actions { width: 100%; justify-content: center; }
  .store-badge { flex: 0 1 auto; }
  .button { width: 100%; }
  .hero-points { display: grid; text-align: left; }
}

/* Acquisition / SEO tool pages */
.tool-hero { padding-block: 68px 42px; max-width: 900px; }
.tool-hero h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); }
.tool-hero .lead { max-width: 780px; }
.breadcrumbs { margin: 0 0 22px; color: var(--muted); font-size: .95rem; }
.breadcrumbs a { color: var(--muted); }
.tool-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 380px); gap: 42px; align-items: start; padding-bottom: 76px; }
.tool-content { min-width: 0; }
.tool-content h2 { margin-top: 42px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.tool-content h3 { margin-top: 30px; }
.tool-content p, .tool-content li { color: var(--muted); }
.tool-aside { position: sticky; top: 128px; display: grid; gap: 18px; }
.tool-cta, .calculator-card { padding: 26px; border: 1px solid var(--border); border-radius: 18px; background: linear-gradient(145deg, var(--surface), var(--surface-soft)); }
.tool-cta h2, .calculator-card h2 { margin-top: 0; font-size: 1.45rem; }
.tool-cta p, .calculator-card p { color: var(--muted); }
.tool-cta .actions { margin-top: 20px; }
.tool-index { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; margin: 28px 0 12px; }
.tool-index a { display: block; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); color: var(--text); text-decoration: none; }
.tool-index a:hover, .tool-index a:focus-visible { border-color: var(--accent); transform: translateY(-1px); }
.tool-index strong { display: block; margin-bottom: 5px; }
.tool-index span { color: var(--muted); font-size: .95rem; }
.calculator-form { display: grid; gap: 15px; margin-top: 22px; }
.calculator-field { display: grid; gap: 7px; }
.calculator-field label { font-weight: 700; }
.calculator-field input { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: #0d1012; color: var(--text); font: inherit; }
.calculator-field input:focus { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
.calculator-result { margin-top: 18px; padding: 18px; border-radius: 12px; background: var(--accent-soft); border: 1px solid rgba(242,140,40,.45); }
.calculator-result strong { display: block; font-size: 1.8rem; color: var(--text); }
.calculator-result span { color: var(--muted); }
.calculator-note { margin-top: 14px; font-size: .9rem; color: var(--muted); }
.inline-cta { margin: 40px 0 0; padding: 24px; border-left: 4px solid var(--accent); border-radius: 10px; background: var(--surface); }
@media (max-width: 860px) {
  .tool-layout { grid-template-columns: 1fr; }
  .tool-aside { position: static; }
}

/* Weight calculator V2 */
.calculator-controls {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin-top: 20px;
}
.calculator-field select {
  width: 100%;
  min-height: 46px;
  padding: 10px 38px 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0d1012;
  color: var(--text);
  font: inherit;
}
.calculator-field select:focus {
  outline: 3px solid var(--accent-soft);
  border-color: var(--accent);
}
.calculator-shape-fields {
  display: grid;
  gap: 15px;
  margin-top: 15px;
}
.calculator-shape-fields[hidden] { display: none !important; }
.calculator-result [data-result-secondary] {
  display: block;
  margin-top: 3px;
  font-size: .9rem;
}
.ad-slot-reserved {
  margin-top: 18px;
  min-height: 0;
}
.ad-slot-reserved[hidden] { display: none !important; }
@media (max-width: 460px) {
  .calculator-controls { grid-template-columns: 1fr; }
}