/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-2: #f0eee7;
  --border: #e2ded3;
  --text: #221f1a;
  --text-soft: #5b564c;
  --accent: #d1622a;
  --accent-ink: #ffffff;
  --accent-2: #2f6f5e;
  --ok: #2f6f5e;
  --warn: #b8720a;
  --error: #c1402c;
  --sans: 'Manrope', system-ui, -apple-system, sans-serif;
  --display: 'Fraunces', Georgia, serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(30,25,15,.04), 0 8px 24px rgba(30,25,15,.06);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16140f;
    --surface: #1f1c16;
    --surface-2: #262219;
    --border: #38332a;
    --text: #f2ede2;
    --text-soft: #b6ae9e;
    --accent: #e6813f;
    --accent-ink: #1a1712;
    --ok: #6ec9ab;
    --warn: #e0a53a;
    --error: #ef7361;
  }
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; overflow-x: clip; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
[hidden] { display: none !important; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; letter-spacing: -0.01em; font-family: var(--display); font-weight: 600; }
ul, ol { padding-left: 1.15em; }
input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--text); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
  transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   3. Utilities
   ============================================================= */
.container { max-width: var(--container); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.section-head { max-width: 62ch; margin-bottom: clamp(1.5rem, 4vw, 2.5rem); }
.eyebrow { font-family: var(--mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.section-head h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); margin-top: .4rem; }
.section-head p { color: var(--text-soft); margin-top: .6rem; font-size: 1.02rem; }

[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
[data-reveal].is-revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* =============================================================
   4. Header
   ============================================================= */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
@supports not (backdrop-filter: blur(1px)) { .site-header { background: var(--bg); } }
.site-header-inner { display: flex; align-items: center; justify-content: space-between; padding-block: .8rem; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .55rem; font-family: var(--display); font-weight: 700; font-size: 1.18rem; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px; background: var(--text); color: var(--bg);
  display: grid; place-items: center; font-family: var(--mono); font-size: .8rem; font-weight: 800;
}
.nav-menu { display: flex; align-items: center; gap: 1.6rem; }
.nav-menu a { font-size: .95rem; font-weight: 600; color: var(--text-soft); transition: color .2s var(--ease-out); }
.nav-menu a:hover { color: var(--text); }
.nav-cta {
  padding: .55rem 1.05rem; border-radius: 999px; background: var(--text); color: var(--bg);
  font-weight: 700; font-size: .9rem;
}
.nav-toggle { display: none; }
@media (max-width: 719px) {
  .nav-toggle {
    display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
    background: var(--surface-2); border: 1px solid var(--border);
  }
  .nav-menu {
    position: fixed; inset: 60px 0.75rem auto 0.75rem; flex-direction: column; align-items: stretch;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem; box-shadow: var(--shadow);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: all .22s var(--ease-out);
  }
  .nav-menu.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-menu a, .nav-cta { padding-block: .6rem; }
}

/* =============================================================
   5. Hero + tool card
   ============================================================= */
.hero { padding-block: clamp(1.8rem, 5vw, 3rem) 0; }
.hero h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); max-width: 20ch; }
.hero p.lead { color: var(--text-soft); font-size: clamp(1rem, 1.6vw, 1.15rem); max-width: 56ch; margin-top: .8rem; }

.tool-card {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 3vw, 1.75rem);
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .tool-card { grid-template-columns: 1.05fr 0.95fr; padding: clamp(1.4rem, 2.4vw, 2.2rem); }
}

.tool-col { display: flex; flex-direction: column; gap: 1.25rem; min-width: 0; }

.field-group { display: flex; flex-direction: column; gap: .5rem; }
.field-group label { font-size: .86rem; font-weight: 700; color: var(--text-soft); }
.text-input, select.text-input {
  width: 100%; padding: .72rem .9rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text); font-size: .98rem;
}
.text-input:focus-visible, select.text-input:focus-visible { outline-offset: 0; }
.checkbox-row { display: flex; align-items: center; gap: .5rem; font-size: .9rem; color: var(--text-soft); }

.tabs { display: inline-flex; gap: .3rem; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: .25rem; }
.tabs button {
  padding: .5rem 1rem; border-radius: 999px; font-weight: 700; font-size: .88rem; color: var(--text-soft);
  transition: all .18s var(--ease-out);
}
.tabs button.is-active { background: var(--text); color: var(--bg); }

.chip-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  padding: .5rem .9rem; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2);
  font-size: .87rem; font-weight: 700; color: var(--text-soft); transition: all .16s var(--ease-out); text-align: left;
}
.chip small { display: block; font-weight: 500; color: var(--text-soft); font-size: .74rem; margin-top: .1rem; }
.chip.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chip.is-active small { color: var(--accent-ink); opacity: .85; }

.color-row { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.color-field { display: flex; align-items: center; gap: .55rem; }
.color-field input[type="color"] {
  width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border); padding: 0; background: none; cursor: pointer;
}
.color-field span { font-size: .85rem; font-weight: 700; color: var(--text-soft); }

.center-row { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; }
.btn-ghost {
  padding: .55rem .95rem; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2);
  font-weight: 700; font-size: .86rem; color: var(--text);
}
#emojiGrid { display: grid; grid-template-columns: repeat(8, 1fr); gap: .3rem; margin-top: .6rem; }
.emoji-btn { font-size: 1.15rem; padding: .35rem 0; border-radius: 8px; text-align: center; transition: background .15s; }
.emoji-btn:hover, .emoji-btn.is-active { background: var(--surface-2); }
.emoji-btn.is-active { outline: 2px solid var(--accent); }
#centerActiveLabel { font-size: .82rem; color: var(--text-soft); }

.qr-preview-wrap { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.qr-preview {
  width: 100%; max-width: 280px; aspect-ratio: 1; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; overflow: hidden;
  padding: .75rem;
}
.qr-preview svg, .qr-preview canvas { width: 100%; height: 100%; }

.download-row { display: flex; gap: .6rem; flex-wrap: wrap; width: 100%; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.3rem; border-radius: 999px; font-weight: 800; font-size: .95rem;
  transition: transform .16s var(--ease-out), box-shadow .16s var(--ease-out), opacity .16s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); flex: 1 1 auto; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--accent) 60%, transparent); }
.btn-secondary { background: var(--surface-2); border: 1px solid var(--border); color: var(--text); flex: 1 1 auto; }
.btn:disabled { opacity: .6; cursor: progress; transform: none; box-shadow: none; }
.size-select-row { display: flex; align-items: center; gap: .6rem; font-size: .85rem; color: var(--text-soft); }
.size-select-row select { padding: .4rem .6rem; }

.privacy-badge {
  display: flex; align-items: flex-start; gap: .55rem; font-size: .85rem; color: var(--text-soft);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .75rem .9rem;
}
.privacy-badge svg { flex: none; width: 18px; height: 18px; color: var(--accent-2); margin-top: 1px; }
.limits-note { font-size: .8rem; color: var(--text-soft); margin-top: .35rem; }

/* --- 3D panel (its own full-width card below the 2D tool card) --- */
.obj-panel { margin-top: clamp(1.2rem, 3vw, 1.8rem); }
.obj-panel-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 960px) {
  .obj-panel-grid { grid-template-columns: 1.05fr 0.95fr; }
}
.obj-panel .format-hint { font-size: .8rem; color: var(--text-soft); margin-top: .4rem; }
.range-row { display: flex; align-items: center; gap: .8rem; }
.range-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.range-row output { font-family: var(--mono); font-size: .85rem; font-weight: 700; min-width: 4.6em; text-align: right; }

.viewer3d {
  position: relative; width: 100%; aspect-ratio: 4/3; border-radius: var(--radius);
  border: 1px solid var(--border); background: radial-gradient(circle at 50% 20%, color-mix(in srgb, var(--accent) 8%, var(--surface-2)), var(--surface-2));
  overflow: hidden;
}
.viewer3d-canvas { position: absolute; inset: 0; }
.viewer3d-hint {
  position: absolute; bottom: .6rem; left: 50%; transform: translateX(-50%);
  font-size: .74rem; color: var(--text-soft); background: color-mix(in srgb, var(--surface) 80%, transparent);
  padding: .3rem .7rem; border-radius: 999px; pointer-events: none;
}
.viewer3d-error { position: absolute; inset: 0; display: grid; place-items: center; padding: 1rem; text-align: center; font-size: .85rem; color: var(--text-soft); background: var(--surface-2); }

.warnings-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .4rem; font-size: .85rem; margin-top: .7rem; }
.warnings-list li { padding: .55rem .7rem; border-radius: 8px; border: 1px solid var(--border); }
.warn-error { background: color-mix(in srgb, var(--error) 12%, var(--surface)); border-color: color-mix(in srgb, var(--error) 35%, var(--border)); color: var(--error); }
.warn-warn { background: color-mix(in srgb, var(--warn) 12%, var(--surface)); border-color: color-mix(in srgb, var(--warn) 35%, var(--border)); color: var(--warn); }
.warn-ok { background: color-mix(in srgb, var(--ok) 12%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 35%, var(--border)); color: var(--ok); }
.warn-info { color: var(--text-soft); }
.module-mm-label { font-family: var(--mono); font-size: .78rem; color: var(--text-soft); margin-top: .5rem; display: block; }

/* =============================================================
   6. Ad placeholders
   ============================================================= */
.ad-slot {
  border: 1px dashed color-mix(in srgb, var(--text) 25%, transparent);
  border-radius: var(--radius-sm);
  background: repeating-linear-gradient(135deg, var(--surface-2), var(--surface-2) 10px, color-mix(in srgb, var(--surface-2) 60%, var(--border)) 10px, color-mix(in srgb, var(--surface-2) 60%, var(--border)) 20px);
  color: var(--text-soft);
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: .2rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
}
.ad-slot span.dim { font-size: .68rem; font-weight: 500; text-transform: none; letter-spacing: 0; }
.ad-leaderboard { min-height: 90px; margin-block: clamp(1.5rem, 4vw, 2.5rem); }
.ad-incontent { min-height: 250px; max-width: 336px; margin: clamp(1.5rem, 4vw, 2.5rem) auto; }

dialog.ad-popup {
  border: none; border-radius: var(--radius); padding: 0; max-width: 420px; width: calc(100% - 2rem);
  box-shadow: 0 20px 60px -12px rgba(0,0,0,.35);
}
dialog.ad-popup::backdrop { background: rgba(15, 12, 8, .55); backdrop-filter: blur(2px); }
.ad-popup-inner { padding: 1.2rem; display: flex; flex-direction: column; gap: .8rem; }
.ad-popup-head { display: flex; align-items: center; justify-content: space-between; }
.ad-popup-head strong { font-size: .95rem; }
.ad-popup-close { width: 30px; height: 30px; border-radius: 999px; background: var(--surface-2); display: grid; place-items: center; font-size: 1rem; }
.ad-popup .ad-slot { min-height: 200px; }
.ad-popup-foot { font-size: .78rem; color: var(--text-soft); }

.corner-ad {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 50; width: min(240px, calc(100vw - 2rem));
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow);
  padding: .8rem; transform: translateY(20px); opacity: 0; pointer-events: none; transition: all .3s var(--ease-out);
}
.corner-ad.is-visible { transform: none; opacity: 1; pointer-events: auto; }
.corner-ad-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .45rem; }
.corner-ad-head span { font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-soft); }
.corner-ad-close { width: 22px; height: 22px; border-radius: 999px; background: var(--surface-2); display: grid; place-items: center; font-size: .85rem; }
.corner-ad .ad-slot { min-height: 70px; }

/* =============================================================
   7. Content sections
   ============================================================= */
.steps { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem;
}
.step-num {
  width: 36px; height: 36px; border-radius: 10px; background: var(--text); color: var(--bg);
  display: grid; place-items: center; font-family: var(--mono); font-weight: 800; margin-bottom: .8rem;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: .45rem; }
.step-card p { color: var(--text-soft); font-size: .93rem; }

.usecases { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 540px) { .usecases { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .usecases { grid-template-columns: repeat(4, 1fr); } }
.usecase-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem;
  display: flex; flex-direction: column; gap: .5rem;
}
.usecase-card .ico { font-size: 1.6rem; }
.usecase-card h3 { font-size: 1rem; }
.usecase-card p { color: var(--text-soft); font-size: .87rem; }

.seo-copy { max-width: 74ch; display: flex; flex-direction: column; gap: 1rem; color: var(--text-soft); }
.seo-copy h2 { color: var(--text); }
.seo-copy strong { color: var(--text); }

.faq-list { display: flex; flex-direction: column; gap: .6rem; max-width: 78ch; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); overflow: hidden; }
.faq-item summary {
  padding: 1rem 1.15rem; font-weight: 700; cursor: pointer; list-style: none; display: flex;
  align-items: center; justify-content: space-between; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--accent); transition: transform .2s var(--ease-out); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 1.15rem 1.1rem; color: var(--text-soft); font-size: .93rem; }

.footer {
  border-top: 1px solid var(--border); padding-block: 2rem; margin-top: 2rem;
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between;
  font-size: .85rem; color: var(--text-soft);
}
.footer-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.footer-links a:hover { color: var(--text); }

/* Legal skeleton pages */
.legal-page { max-width: 74ch; margin-inline: auto; padding-block: 3rem; display: flex; flex-direction: column; gap: 1rem; }
.legal-page h1 { font-size: 1.8rem; }
.legal-page h2 { font-size: 1.15rem; margin-top: 1rem; }
.legal-page p, .legal-page li { color: var(--text-soft); }

/* =============================================================
   8. Breakpoints already applied inline above; final tweaks
   ============================================================= */
@media (min-width: 1280px) {
  .hero h1 { max-width: 24ch; }
}