/* =============================================================================
   QRino — styles.css  (single file, sectioned)
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f1f3f9;
  --ink: #0f1729;
  --ink-soft: #4a5568;
  --muted: #7a869a;
  --line: #e3e7f0;
  --line-strong: #d3d9e6;
  --brand: #4f46e5;
  --brand-ink: #4338ca;
  --brand-soft: #eef0fe;
  --accent: #06b6d4;
  --ok: #059669;
  --warn: #b45309;
  --bad: #dc2626;
  --ok-bg: #e7f6ef; --warn-bg: #fdf2e2; --bad-bg: #fdeaea;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.06);
  --shadow-lg: 0 12px 40px rgba(16,24,40,.12);
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: "Sora", var(--sans);
  --ease-out: cubic-bezier(.16,1,.3,1);
  --maxw: 1180px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f1a; --surface: #131a2a; --surface-2: #0f1626;
    --ink: #eef1f8; --ink-soft: #b7c0d4; --muted: #8792a8;
    --line: #263149; --line-strong: #31405f;
    --brand: #7c8bff; --brand-ink: #93a0ff; --brand-soft: #1b2340;
    --ok-bg: #10281f; --warn-bg: #2c2110; --bad-bg: #2c1414;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  }
}

/* 2. Reset & base ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
input, select, textarea { font: inherit; color: inherit; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.12; letter-spacing: -.02em; font-family: var(--display); }
::selection { background: var(--brand); color: #fff; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 6px; }

/* 3. Utilities ------------------------------------------------------------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.skip-link { position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem; background: var(--brand); color: #fff; z-index: 9999; border-radius: 8px; }
.skip-link:focus { top: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.eyebrow { display: inline-block; font-weight: 600; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-ink); }

/* 4. Header ---------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; gap: 1rem; height: 62px; }
.logo { display: flex; align-items: center; gap: .55rem; font-family: var(--display); font-weight: 700; font-size: 1.18rem; letter-spacing: -.02em; }
.logo-mark { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--accent)); color: #fff; font-size: 1rem; }
.header-nav { margin-left: auto; display: flex; align-items: center; gap: .3rem; }
.header-nav a { padding: .5rem .7rem; border-radius: 8px; font-size: .92rem; font-weight: 500; color: var(--ink-soft); }
.header-nav a:hover { background: var(--surface-2); color: var(--ink); }
.header-nav .nav-cta { background: var(--brand); color: #fff; }
.header-nav .nav-cta:hover { background: var(--brand-ink); color: #fff; }
.nav-toggle { display: none; }

/* 5. Buttons --------------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .7rem 1.1rem; border-radius: 12px; font-weight: 600; font-size: .95rem;
  transition: transform .15s var(--ease-out), background .15s, box-shadow .15s; border: 1px solid transparent; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .6; cursor: wait; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 6px 16px color-mix(in srgb, var(--brand) 34%, transparent); }
.btn-primary:hover { background: var(--brand-ink); }
.btn-outline { background: var(--surface); color: var(--ink); border-color: var(--line-strong); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand-ink); }
.btn-ghost { background: var(--surface-2); color: var(--ink-soft); }
.btn-ghost:hover { color: var(--ink); }
.btn-test { width: 100%; margin-top: .5rem; background: var(--surface-2); color: var(--brand-ink); border: 1px dashed var(--line-strong); }
.btn-test:hover { border-color: var(--brand); }
.btn-file { position: relative; overflow: hidden; }

/* 6. Hero + tool ----------------------------------------------------------- */
.hero { padding: clamp(1.4rem, 3vw, 2.4rem) 0 .5rem; text-align: center; }
.hero h1 { font-size: clamp(1.7rem, 4.6vw, 2.9rem); }
.hero .sub { max-width: 620px; margin: .8rem auto 0; color: var(--ink-soft); font-size: clamp(1rem, 2.2vw, 1.12rem); }

.tool-section { padding: 1rem 0 1.5rem; }
.tool-card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-lg); padding: clamp(1rem, 2.5vw, 1.6rem); }

.qr-grid { display: grid; gap: clamp(1rem, 2.5vw, 2rem); grid-template-columns: 1fr; }
@media (min-width: 960px) { .qr-grid { grid-template-columns: 1.15fr .85fr; align-items: start; } }

.qr-step { display: flex; align-items: center; gap: .6rem; margin: 1.2rem 0 .7rem; }
.qr-step:first-child { margin-top: 0; }
.qr-step h3 { font-size: 1.02rem; }
.step-n { width: 26px; height: 26px; flex: 0 0 26px; border-radius: 50%; background: var(--brand-soft); color: var(--brand-ink);
  font-weight: 700; font-size: .85rem; display: grid; place-items: center; font-family: var(--sans); }

/* type chips */
.type-chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.type-chip { display: inline-flex; align-items: center; gap: .4rem; padding: .5rem .7rem; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--surface); font-size: .88rem; font-weight: 500; color: var(--ink-soft); }
.type-chip:hover { border-color: var(--brand); color: var(--ink); }
.type-chip[aria-pressed="true"] { background: var(--brand); color: #fff; border-color: var(--brand); }
.type-emoji { font-size: 1.05rem; }

/* form */
.qr-form { display: grid; gap: .8rem; }
.fld { display: grid; gap: .32rem; }
.fld-label { font-size: .86rem; font-weight: 600; color: var(--ink-soft); }
.fld-label em { color: var(--bad); font-style: normal; }
.fld input[type=text], .fld input[type=url], .fld input[type=tel], .fld input[type=email],
.fld input[type=datetime-local], .fld select, .fld textarea {
  width: 100%; padding: .62rem .75rem; border: 1px solid var(--line-strong); border-radius: 12px;
  background: var(--surface); transition: border .15s, box-shadow .15s; }
.fld input:focus, .fld select:focus, .fld textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); outline: none; }
.fld textarea { resize: vertical; min-height: 52px; }
.fld-help { font-size: .78rem; color: var(--muted); line-height: 1.45; }
.fld-check { flex-direction: row; display: flex; align-items: center; gap: .5rem; }
.fld-check input { width: 18px; height: 18px; accent-color: var(--brand); }
.fld-phone { display: flex; gap: .4rem; }
.fld-phone .fld-cc { flex: 0 0 42%; max-width: 42%; }
.fld-phone input { flex: 1; }
.fld input[type=color] { width: 100%; height: 42px; padding: 3px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--surface); }
.fld input[type=range] { accent-color: var(--brand); }

/* design panel */
.qr-design { display: grid; gap: 1rem; }
.dsn-block { display: grid; gap: .5rem; }
.dsn-title { font-size: .86rem; font-weight: 600; color: var(--ink-soft); }
.chip-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.style-chip { padding: .42rem .7rem; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-size: .85rem; font-weight: 500; }
.style-chip[aria-pressed="true"] { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.emoji-row .emoji-chip { width: 40px; height: 40px; font-size: 1.2rem; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); display: grid; place-items: center; }
.emoji-chip[aria-pressed="true"] { border-color: var(--brand); background: var(--brand-soft); box-shadow: 0 0 0 2px var(--brand-soft); }
.dsn-colors { grid-template-columns: 1fr 1fr; display: grid; gap: .7rem; align-items: end; }
.dsn-colors .fld-check { grid-column: 1 / -1; }
.dsn-colors #ctl-dark2-wrap { grid-column: 1 / -1; }
.logo-row { display: flex; gap: .5rem; flex-wrap: wrap; }
.dsn-frame { display: grid; gap: .7rem; }
.dsn-adv summary { cursor: pointer; font-weight: 600; font-size: .9rem; color: var(--brand-ink); padding: .3rem 0; }
.adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin-top: .5rem; }
.tpl-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.tpl-chip { display: inline-flex; align-items: center; gap: .4rem; padding: .4rem .65rem; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--surface); font-size: .82rem; }
.tpl-dot { width: 14px; height: 14px; border-radius: 4px; }

/* preview */
.qr-right { position: sticky; top: 78px; }
.qr-preview-card { background: var(--surface-2); border: 1px solid var(--line); border-radius: 18px; padding: 1.1rem; text-align: center; }
.qr-label-prev { font-weight: 600; margin-bottom: .5rem; color: var(--ink); }
.qr-preview-wrap { position: relative; display: inline-block; padding: var(--frame, 0); border: var(--frame,0) solid transparent;
  border-radius: 16px; background: #fff; margin-inline: auto; box-shadow: var(--shadow);
  outline: var(--frame) solid var(--frame-color, transparent); outline-offset: calc(-1 * var(--frame, 0px)); }
.qr-preview { width: 260px; height: 260px; max-width: 68vw; margin: 0 auto; display: grid; place-items: center; }
.qr-preview canvas, .qr-preview svg { width: 100% !important; height: 100% !important; border-radius: 8px; }
.qr-frame-cap { margin-top: .55rem; padding: .4rem .8rem; border-radius: 8px; font-weight: 700; letter-spacing: .04em; font-size: .8rem; display: inline-block; }
.qr-empty { color: var(--muted); font-size: .86rem; margin-top: .7rem; }
.qr-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: 1rem; }
.qr-actions .btn-primary { grid-column: 1 / -1; }
.test-out { margin-top: .6rem; padding: .7rem .8rem; border-radius: 12px; font-size: .86rem; text-align: left; line-height: 1.5; }
.test-out.ok { background: var(--ok-bg); color: var(--ok); }
.test-out.warn { background: var(--warn-bg); color: var(--warn); }
.test-out.bad { background: var(--bad-bg); color: var(--bad); }
.test-payload { display: block; margin-top: .35rem; font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: .76rem; word-break: break-all; opacity: .85; }
.qr-checklist { list-style: none; margin: .9rem 0 0; padding: 0; display: grid; gap: .35rem; text-align: left; }
.chk { display: flex; gap: .5rem; align-items: flex-start; font-size: .82rem; color: var(--ink-soft); }
.chk-ico { flex: 0 0 16px; width: 16px; height: 16px; border-radius: 50%; margin-top: .15rem; }
.chk-ok .chk-ico { background: var(--ok); } .chk-warn .chk-ico { background: var(--warn); } .chk-bad .chk-ico { background: var(--bad); }
.qr-privacy { margin-top: .9rem; font-size: .8rem; color: var(--muted); }
.qr-flash { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--ink); color: var(--bg);
  padding: .7rem 1.1rem; border-radius: 12px; font-size: .9rem; opacity: 0; pointer-events: none; transition: .25s var(--ease-out); z-index: 999; }
.qr-flash.show { opacity: 1; transform: translate(-50%, 0); }

/* 7. Category grid --------------------------------------------------------- */
.section { padding: clamp(2rem, 5vw, 3.4rem) 0; }
.section h2 { font-size: clamp(1.4rem, 3.4vw, 2rem); text-align: center; }
.section .lead { text-align: center; color: var(--ink-soft); max-width: 640px; margin: .7rem auto 0; }
.cat-grid { display: grid; gap: .8rem; grid-template-columns: repeat(2, 1fr); margin-top: 1.6rem; }
@media (min-width: 640px) { .cat-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 960px) { .cat-grid { grid-template-columns: repeat(4, 1fr); } }
.cat-card { display: flex; flex-direction: column; gap: .35rem; padding: 1rem; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--line); transition: transform .15s var(--ease-out), box-shadow .15s, border-color .15s; }
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--brand); }
.cat-ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.5rem;
  background: var(--brand-soft); }
.cat-card h3 { font-size: 1rem; font-family: var(--sans); }
.cat-card p { font-size: .82rem; color: var(--muted); }

/* 8. Steps / features ------------------------------------------------------ */
.steps { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 1.8rem; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; text-align: center; }
.step-card .big { width: 48px; height: 48px; margin: 0 auto .7rem; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--accent)); color: #fff; font-weight: 700; font-size: 1.3rem; font-family: var(--display); }
.step-card h3 { font-size: 1.05rem; font-family: var(--sans); }
.step-card p { color: var(--ink-soft); font-size: .9rem; margin-top: .4rem; }

.ideas { display: grid; gap: .8rem; grid-template-columns: 1fr; margin-top: 1.6rem; }
@media (min-width: 720px) { .ideas { grid-template-columns: repeat(2, 1fr); } }
.idea { display: flex; gap: .8rem; padding: 1rem; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.idea .idea-ico { font-size: 1.5rem; }
.idea h3 { font-size: .98rem; font-family: var(--sans); }
.idea p { font-size: .86rem; color: var(--ink-soft); }

/* 9. SEO text + FAQ -------------------------------------------------------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { text-align: left; margin-top: 1.6rem; }
.prose h3 { margin-top: 1.3rem; font-size: 1.1rem; }
.prose p, .prose li { color: var(--ink-soft); }
.prose p { margin-top: .8rem; }
.prose ul { margin: .6rem 0 0 1.1rem; display: grid; gap: .35rem; }
.faq { max-width: 760px; margin: 1.4rem auto 0; display: grid; gap: .6rem; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .2rem .2rem; }
.faq summary { cursor: pointer; padding: .9rem 1rem; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 1rem 1rem; color: var(--ink-soft); font-size: .92rem; }

/* 10. Ads ------------------------------------------------------------------ */
.ad-slot { margin: 1.4rem auto; max-width: var(--maxw); display: flex; align-items: center; justify-content: center;
  border: 1px dashed var(--line-strong); border-radius: 12px; background: var(--surface-2); color: var(--muted);
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; }
.ad-leaderboard { min-height: 100px; }
.ad-incontent { min-height: 250px; }
.ad-footer { min-height: 120px; }
.ad-sidebar { min-height: 600px; width: 300px; margin: 0; }
.with-sidebar { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 1120px) { .with-sidebar { grid-template-columns: minmax(0,1fr) 300px; } }
@media (max-width: 1119px) { .ad-sidebar { display: none; } }

/* 11. More tools + footer -------------------------------------------------- */
.more-tools { display: grid; gap: .6rem; grid-template-columns: repeat(2, 1fr); margin-top: 1.4rem; }
@media (min-width: 720px) { .more-tools { grid-template-columns: repeat(4, 1fr); } }
.more-tools a { display: flex; align-items: center; gap: .5rem; padding: .7rem .9rem; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--line); font-size: .88rem; font-weight: 500; }
.more-tools a:hover { border-color: var(--brand); color: var(--brand-ink); }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); margin-top: 2rem; padding: 2rem 0 2.5rem; }
.footer-grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-grid h4 { font-family: var(--sans); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: .6rem; }
.footer-grid a { display: block; padding: .2rem 0; color: var(--ink-soft); font-size: .9rem; }
.footer-grid a:hover { color: var(--brand-ink); }
.footer-bottom { margin-top: 1.6rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .82rem; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: .6rem; justify-content: space-between; }

/* 12. Templates (posters) page -------------------------------------------- */
.poster-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 1.4rem; }
@media (min-width: 720px) { .poster-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .poster-grid { grid-template-columns: repeat(3, 1fr); } }
.poster { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.poster-preview { aspect-ratio: 3/4; display: grid; place-items: center; padding: 1rem; }
.poster-body { padding: .9rem 1rem 1.1rem; display: grid; gap: .5rem; }
.poster-body h3 { font-size: 1rem; font-family: var(--sans); }

/* 13. Responsive header ---------------------------------------------------- */
@media (max-width: 760px) {
  .header-nav { position: fixed; inset: 62px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface); border-bottom: 1px solid var(--line); padding: .5rem; transform: translateY(-120%); transition: transform .25s var(--ease-out); }
  .header-nav[data-open="true"] { transform: translateY(0); }
  .header-nav a { padding: .8rem; }
  .nav-toggle { display: inline-grid; place-items: center; margin-left: auto; width: 40px; height: 40px; border-radius: 10px; background: var(--surface-2); }
  .qr-right { position: static; }
}

/* 13b. Tools hub + lang switch -------------------------------------------- */
.header-nav .lang-switch { font-weight: 700; letter-spacing: .03em; border: 1px solid var(--line-strong); }
.header-nav .nav-hub { color: var(--brand-ink); font-weight: 600; }
.tools-hub { background: linear-gradient(180deg, var(--brand-soft), transparent 70%); }
.tools-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 1.6rem; }
@media (min-width: 720px) { .tools-grid { grid-template-columns: repeat(3, 1fr); } }
.tool-card-hub { display: flex; flex-direction: column; gap: .4rem; padding: 1.4rem; border-radius: 18px; background: var(--surface);
  border: 1px solid var(--line); position: relative; transition: transform .15s var(--ease-out), box-shadow .15s, border-color .15s; }
a.tool-card-hub:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand); }
.tool-card-hub.is-soon { opacity: .72; }
.tool-emoji { font-size: 2rem; }
.tool-card-hub h3 { font-size: 1.12rem; font-family: var(--sans); }
.tool-card-hub p { font-size: .9rem; color: var(--ink-soft); }
.tool-badge { position: absolute; top: 1rem; right: 1rem; font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: .2rem .5rem; border-radius: 999px; }
.tool-badge.live { background: var(--ok-bg); color: var(--ok); }
.tool-badge.soon { background: var(--surface-2); color: var(--muted); }

/* 14. Reduced motion ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cat-card, .btn { transition: none; }
}