/* QR Studio - /qrcode-generator. Everything is scoped under .qrs-* */

.qrs {
    --qrs-ink: #0f172a;
    --qrs-ink-2: #475569;
    --qrs-ink-3: #94a3b8;
    --qrs-line: #e2e8f0;
    --qrs-soft: #f1f5f9;
    --qrs-card: #ffffff;
    --qrs-accent: #4f46e5;
    --qrs-accent-2: #7c3aed;
    --qrs-accent-soft: #eef2ff;
    --qrs-ok: #059669;
    --qrs-warn: #d97706;
    --qrs-bad: #dc2626;
    --qrs-radius: 20px;
    --qrs-shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 12px 32px -12px rgba(15, 23, 42, .16);
    color: var(--qrs-ink);
    font-size: 15px;
    line-height: 1.5;
    background: linear-gradient(180deg, #f7f7fd 0, #f8fafc 520px, #fff 100%);
    padding-bottom: 8px;
    overflow-x: clip;
}
.qrs *, .qrs *::before, .qrs *::after { box-sizing: border-box; }
.qrs svg { width: 1em; height: 1em; flex: none; }
.qrs button { font: inherit; }
.qrs-wrap { max-width: 1240px; margin: 0 auto; padding-inline: 20px; }
.qrs-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.qrs [hidden] { display: none !important; }

/* ---------- hero ---------- */
.qrs-hero { position: relative; overflow: hidden; padding: 44px 0 36px; }
.qrs-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.qrs-blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55; animation: qrs-float 16s ease-in-out infinite alternate; }
.qrs-blob.b1 { width: 420px; height: 420px; background: #c7d2fe; top: -160px; left: -80px; }
.qrs-blob.b2 { width: 360px; height: 360px; background: #ddd6fe; top: -60px; right: 8%; animation-delay: -5s; }
.qrs-blob.b3 { width: 280px; height: 280px; background: #a5f3fc; bottom: -160px; left: 42%; opacity: .4; animation-delay: -9s; }
.qrs-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(79,70,229,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(79,70,229,.06) 1px, transparent 1px); background-size: 28px 28px; mask-image: radial-gradient(ellipse at 70% 30%, #000 10%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 10%, transparent 70%); }
@keyframes qrs-float { from { transform: translate(0, 0) scale(1); } to { transform: translate(40px, 30px) scale(1.12); } }

.qrs-hero-inner { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; }
.qrs-kicker { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 12px; padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,.8); border: 1px solid #e0e7ff; color: var(--qrs-accent); font-weight: 600; font-size: 13px; backdrop-filter: blur(6px); }
.qrs-dot-live { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 0 rgba(34,197,94,.6); animation: qrs-ping 2s infinite; }
@keyframes qrs-ping { 70% { box-shadow: 0 0 0 8px rgba(34,197,94,0); } 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); } }
.qrs-h1 { margin: 0 0 12px; font-size: clamp(28px, 3.6vw, 42px); line-height: 1.08; font-weight: 800; letter-spacing: -.02em; background: linear-gradient(100deg, #0f172a 20%, #4f46e5 60%, #7c3aed 90%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.qrs-lede { margin: 0 0 18px; max-width: 640px; font-size: 17px; color: var(--qrs-ink-2); }
.qrs-hero-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.qrs-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--qrs-line); font-size: 13px; color: var(--qrs-ink-2); box-shadow: 0 1px 2px rgba(15,23,42,.04); }
.qrs-badge svg { color: var(--qrs-accent); fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; font-size: 15px; }

.qrs-hero-art { width: 190px; height: 190px; perspective: 800px; }
.qrs-hero-card { position: relative; width: 100%; height: 100%; border-radius: 28px; background: #fff; box-shadow: 0 30px 60px -20px rgba(79,70,229,.45), 0 0 0 1px #e0e7ff; padding: 26px; animation: qrs-tilt 7s ease-in-out infinite alternate; overflow: hidden; }
@keyframes qrs-tilt { from { transform: rotateX(8deg) rotateY(-14deg); } to { transform: rotateX(-6deg) rotateY(12deg); } }
.qrs-hero-qr { position: relative; width: 100%; height: 100%; background-image: radial-gradient(circle, #4f46e5 38%, transparent 42%); background-size: 11.5px 11.5px; border-radius: 6px; mask-image: linear-gradient(135deg, #000 0 100%); }
.qrs-hero-qr i { position: absolute; width: 38px; height: 38px; border: 7px solid #1e1b4b; border-radius: 11px; background: #fff; box-shadow: 0 0 0 4px #fff; }
.qrs-hero-qr i::after { content: ""; position: absolute; inset: 5px; border-radius: 4px; background: #7c3aed; }
.qrs-hero-qr i:nth-child(1) { top: 0; left: 0; }
.qrs-hero-qr i:nth-child(2) { top: 0; right: 0; }
.qrs-hero-qr i:nth-child(3) { bottom: 0; left: 0; }
.qrs-hero-qr b { position: absolute; left: 50%; top: 50%; width: 34px; height: 34px; margin: -17px; border-radius: 10px; background: linear-gradient(135deg, #4f46e5, #7c3aed); box-shadow: 0 0 0 5px #fff; }
.qrs-hero-scan { position: absolute; left: 12px; right: 12px; height: 3px; top: 12%; border-radius: 3px; background: linear-gradient(90deg, transparent, #22d3ee, transparent); box-shadow: 0 0 18px 4px rgba(34,211,238,.55); animation: qrs-scanline 2.6s ease-in-out infinite alternate; }
@keyframes qrs-scanline { to { top: 86%; } }

/* ---------- studio grid ---------- */
.qrs-studio { display: grid; grid-template-columns: minmax(0, 1fr) 400px; grid-template-areas: "content preview" "design preview"; gap: 22px; align-items: start; }
.qrs-area-content { grid-area: content; }
.qrs-area-design { grid-area: design; }
.qrs-area-preview { grid-area: preview; position: sticky; top: 92px; align-self: start; }

.qrs-card { background: var(--qrs-card); border: 1px solid var(--qrs-line); border-radius: var(--qrs-radius); box-shadow: var(--qrs-shadow); padding: 22px; min-width: 0; }
.qrs-card-head { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.qrs-step { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; background: linear-gradient(135deg, var(--qrs-accent), var(--qrs-accent-2)); color: #fff; font-weight: 700; box-shadow: 0 6px 14px -4px rgba(79,70,229,.6); flex: none; }
.qrs-h2 { margin: 0; font-size: 19px; font-weight: 750; letter-spacing: -.01em; color: var(--qrs-ink); }
.qrs-h3 { margin: 0 0 10px; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--qrs-ink-2); }
.qrs-sub { margin: 2px 0 0; color: var(--qrs-ink-2); font-size: 14px; }

/* entrance */
.qrs-reveal { opacity: 0; transform: translateY(14px); transition: opacity .4s ease, transform .45s cubic-bezier(.2,.7,.2,1); }
.qrs-reveal.is-in { opacity: 1; transform: none; }
.qrs-hero-copy > * { animation: qrs-rise .7s cubic-bezier(.2,.7,.2,1) both; }
.qrs-hero-copy > *:nth-child(2) { animation-delay: .06s; }
.qrs-hero-copy > *:nth-child(3) { animation-delay: .12s; }
.qrs-hero-copy > *:nth-child(4) { animation-delay: .18s; }
@keyframes qrs-rise { from { opacity: 0; transform: translateY(12px); } }

/* ---------- type chips ---------- */
.qrs-types { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; margin-bottom: 18px; }
.qrs-type { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 11px 4px 9px; border-radius: 14px; border: 1px solid var(--qrs-line); background: #fff; color: var(--qrs-ink-2); cursor: pointer; font-size: 12.5px; font-weight: 600; transition: transform .18s, border-color .18s, background .18s, color .18s, box-shadow .18s; }
.qrs-type svg { font-size: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform .25s; }
.qrs-type:hover { border-color: #c7d2fe; color: var(--qrs-accent); transform: translateY(-2px); }
.qrs-type:hover svg { transform: scale(1.12); }
.qrs-type[aria-selected="true"] { background: linear-gradient(135deg, var(--qrs-accent), var(--qrs-accent-2)); border-color: transparent; color: #fff; box-shadow: 0 8px 18px -8px rgba(79,70,229,.7); }

/* ---------- form fields ---------- */
.qrs-form { animation: qrs-fade .3s ease both; }
@keyframes qrs-fade { from { opacity: 0; transform: translateY(6px); } }
.qrs-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.qrs-row-3 { grid-template-columns: 1.4fr 1fr 1fr; }
.qrs-field { margin-bottom: 12px; min-width: 0; }
.qrs-field label { display: block; margin-bottom: 5px; font-size: 13.5px; font-weight: 600; color: var(--qrs-ink); }
.qrs-field input, .qrs-field select, .qrs-field textarea {
    width: 100%; padding: 10px 12px; border-radius: 11px; border: 1px solid #cbd5e1; background: #fff; color: var(--qrs-ink); font: inherit; font-size: 15px; min-height: 44px;
    transition: border-color .15s, box-shadow .15s;
}
.qrs-field textarea { resize: vertical; min-height: 84px; }
.qrs-field input:focus, .qrs-field select:focus, .qrs-field textarea:focus { outline: none; border-color: var(--qrs-accent); box-shadow: 0 0 0 4px rgba(79,70,229,.15); }
.qrs-field.has-err input, .qrs-field.has-err textarea { border-color: var(--qrs-bad); box-shadow: 0 0 0 3px rgba(220,38,38,.1); }
.qrs-field-check { display: flex; align-items: flex-end; padding-bottom: 10px; }
.qrs-err { margin: 4px 0 0; font-size: 13px; color: var(--qrs-bad); min-height: 0; }
.qrs-err:empty { display: none; }
.qrs-err.is-info { color: var(--qrs-accent); }
.qrs-hint { margin: 4px 0 0; font-size: 12.5px; color: var(--qrs-ink-3); }
.qrs-hint code { font-size: 12px; color: var(--qrs-accent); background: var(--qrs-accent-soft); padding: 0 4px; border-radius: 4px; }
.qrs-note { margin: 10px 0 0; padding: 9px 12px; border-radius: 10px; background: var(--qrs-accent-soft); color: #3730a3; font-size: 13px; animation: qrs-fade .3s both; }

/* switch */
.qrs-switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; font-weight: 500; color: var(--qrs-ink); user-select: none; min-height: 32px; }
.qrs-switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.qrs-switch span { position: relative; width: 38px; height: 22px; border-radius: 999px; background: #cbd5e1; transition: background .2s; flex: none; }
.qrs-switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: transform .2s cubic-bezier(.3,.7,.3,1.3); }
.qrs-switch input:checked + span { background: var(--qrs-accent); }
.qrs-switch input:checked + span::after { transform: translateX(16px); }
.qrs-switch input:focus-visible + span { box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--qrs-accent); }

/* buttons */
.qrs-btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 44px; padding: 9px 16px; border-radius: 12px; border: 1px solid var(--qrs-line); background: #fff; color: var(--qrs-ink); font-weight: 600; font-size: 14.5px; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s, border-color .15s; text-decoration: none; }
.qrs-btn svg { font-size: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.qrs-btn:hover { transform: translateY(-1px); border-color: #c7d2fe; box-shadow: 0 6px 14px -8px rgba(79,70,229,.5); }
.qrs-btn:active { transform: translateY(0) scale(.98); }
.qrs-btn:disabled { opacity: .55; cursor: progress; transform: none; }
.qrs-btn-primary { background: linear-gradient(135deg, var(--qrs-accent), var(--qrs-accent-2)); color: #fff; border-color: transparent; }
.qrs-btn-primary:hover { box-shadow: 0 10px 20px -8px rgba(79,70,229,.8); }
.qrs-btn-soft { background: var(--qrs-accent-soft); color: var(--qrs-accent); border-color: #e0e7ff; }
.qrs-btn-ghost { background: var(--qrs-soft); border-color: transparent; font-size: 13.5px; padding: 8px 6px; }
.qrs-link-btn { background: none; border: 0; color: var(--qrs-accent); font-weight: 600; font-size: 13.5px; cursor: pointer; padding: 6px 4px; border-radius: 6px; }
.qrs-link-btn:hover { text-decoration: underline; }
.qrs :focus-visible { outline: 3px solid var(--qrs-accent); outline-offset: 2px; }

/* payload */
.qrs-payload { margin-top: 6px; padding: 12px 14px; border-radius: 14px; background: var(--qrs-soft); border: 1px dashed #cbd5e1; }
.qrs-payload-head { display: flex; justify-content: space-between; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--qrs-ink-2); }
.qrs-cap { font-weight: 600; text-transform: none; letter-spacing: 0; }
.qrs-meter { height: 6px; margin: 8px 0; border-radius: 999px; background: #e2e8f0; overflow: hidden; }
.qrs-meter span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #22c55e, #84cc16); transition: width .35s ease, background .35s; }
.qrs-meter span.is-warn { background: linear-gradient(90deg, #f59e0b, #f97316); }
.qrs-meter span.is-bad { background: linear-gradient(90deg, #ef4444, #dc2626); }
.qrs-payload-text { display: block; max-height: 88px; overflow: auto; white-space: pre-wrap; word-break: break-all; font-size: 12.5px; color: #334155; background: none; padding: 0; }

/* ---------- preview ---------- */
.qrs-preview-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.qrs-pill { padding: 4px 10px; border-radius: 999px; background: var(--qrs-accent-soft); color: var(--qrs-accent); font-weight: 600; font-size: 12.5px; }
.qrs-stage { position: relative; display: grid; place-items: center; min-height: 330px; padding: 22px; border-radius: 16px; background-color: #f8fafc; background-image: linear-gradient(45deg, #eef2f7 25%, transparent 25%), linear-gradient(-45deg, #eef2f7 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #eef2f7 75%), linear-gradient(-45deg, transparent 75%, #eef2f7 75%); background-size: 18px 18px; background-position: 0 0, 0 9px, 9px -9px, -9px 0; overflow: hidden; }
.qrs-stage::before { content: ""; position: absolute; width: 70%; height: 70%; border-radius: 50%; background: radial-gradient(circle, rgba(129,140,248,.35), transparent 70%); filter: blur(20px); animation: qrs-pulse 5s ease-in-out infinite; }
@keyframes qrs-pulse { 50% { transform: scale(1.15); opacity: .7; } }
.qrs-frame { position: relative; display: flex; flex-direction: column; align-items: center; transition: transform .35s cubic-bezier(.2,.8,.2,1.2), opacity .25s; --qrs-frame: #111827; }
.qrs-frame.is-updating { transform: scale(.965); opacity: .55; }
.qrs-canvas { width: 256px; height: 256px; line-height: 0; }
.qrs-canvas svg, .qrs-canvas canvas { width: 100% !important; height: 100% !important; display: block; }
.qrs-caption { display: none; font-weight: 800; letter-spacing: .08em; font-size: 17px; text-align: center; max-width: 256px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qrs-frame[data-frame="box"] { padding: 12px 12px 8px; border: 6px solid var(--qrs-frame); border-radius: 8px; background: var(--qrs-frame-bg, #fff); }
.qrs-frame[data-frame="box"] .qrs-caption { display: block; color: var(--qrs-frame); padding-top: 6px; }
.qrs-frame[data-frame="badge"] { padding: 12px 12px 0; border-radius: 26px; background: var(--qrs-frame); box-shadow: 0 16px 30px -12px rgba(15,23,42,.45); }
.qrs-frame[data-frame="badge"] .qrs-canvas { border-radius: 16px; overflow: hidden; background: var(--qrs-frame-bg, #fff); }
.qrs-frame[data-frame="badge"] .qrs-caption { display: block; color: #fff; padding: 9px 0 11px; }
.qrs-frame[data-frame="ribbon"] .qrs-caption { display: block; position: relative; margin-top: 14px; padding: 8px 26px; border-radius: 12px; background: var(--qrs-frame); color: #fff; }
.qrs-frame[data-frame="ribbon"] .qrs-caption::before { content: ""; position: absolute; top: -8px; left: 50%; margin-left: -9px; border: 9px solid transparent; border-top: 0; border-bottom-color: var(--qrs-frame); }
.qrs-frame[data-frame="ribbon"] .qrs-caption:empty, .qrs-frame .qrs-caption:empty { padding-block: 4px; }
.qrs-empty { position: absolute; inset: auto 16px 12px; text-align: center; font-size: 13px; color: var(--qrs-ink-2); background: rgba(255,255,255,.9); border-radius: 10px; padding: 6px; }
.qrs-stage.is-empty .qrs-frame { filter: grayscale(1) blur(1.5px); opacity: .35; }

.qrs-checks { display: grid; gap: 6px; margin: 14px 0 10px; }
.qrs-check { display: flex; align-items: center; gap: 9px; font-size: 13.5px; padding: 7px 10px; border-radius: 10px; background: #ecfdf5; color: #065f46; transition: background .25s, color .25s; }
.qrs-check-ico { width: 18px; height: 18px; border-radius: 50%; background: var(--qrs-ok); flex: none; position: relative; }
.qrs-check-ico::after { content: ""; position: absolute; left: 6px; top: 3px; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.qrs-check[data-level="warn"] { background: #fffbeb; color: #92400e; }
.qrs-check[data-level="warn"] .qrs-check-ico, .qrs-check[data-level="bad"] .qrs-check-ico { background: var(--qrs-warn); }
.qrs-check[data-level="bad"] { background: #fef2f2; color: #991b1b; }
.qrs-check[data-level="bad"] .qrs-check-ico { background: var(--qrs-bad); }
.qrs-check[data-level="warn"] .qrs-check-ico::after, .qrs-check[data-level="bad"] .qrs-check-ico::after { left: 8px; top: 3px; width: 2px; height: 8px; border: 0; background: #fff; transform: none; box-shadow: 0 10px 0 #fff; height: 7px; }

.qrs-btn-scan { width: 100%; background: #0f172a; color: #fff; border-color: #0f172a; }
.qrs-btn-scan:hover { background: #1e293b; }
.qrs-btn-scan.is-busy svg { animation: qrs-spin 1s linear infinite; }
@keyframes qrs-spin { to { transform: rotate(360deg); } }
.qrs-scan-result { margin: 8px 0 0; font-size: 13.5px; word-break: break-word; }
.qrs-scan-result:empty { display: none; }
.qrs-scan-result.is-ok { color: var(--qrs-ok); }
.qrs-scan-result.is-bad { color: var(--qrs-bad); }
.qrs-scan-result code { font-size: 12.5px; background: var(--qrs-soft); color: var(--qrs-ink); padding: 1px 5px; border-radius: 5px; white-space: pre-wrap; }

.qrs-export { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--qrs-line); }
.qrs-export-size, .qrs-range { display: grid; grid-template-columns: auto 1fr 64px; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 13.5px; font-weight: 600; }
.qrs-range output, .qrs-export-size output { text-align: right; color: var(--qrs-ink-2); font-variant-numeric: tabular-nums; font-weight: 500; }
.qrs input[type="range"] { width: 100%; accent-color: var(--qrs-accent); height: 28px; }
.qrs-dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.qrs-act-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 8px; }

.qrs-history { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--qrs-line); }
.qrs-history-head { display: flex; justify-content: space-between; align-items: center; }
.qrs-history-head .qrs-h3 { margin: 0; }
.qrs-history-strip { display: flex; gap: 8px; overflow-x: auto; padding: 8px 2px 4px; scroll-snap-type: x proximity; }
.qrs-history-strip:empty { display: none; }
.qrs-hist { position: relative; flex: none; scroll-snap-align: start; animation: qrs-pop .35s cubic-bezier(.2,.8,.2,1.3) both; }
@keyframes qrs-pop { from { opacity: 0; transform: scale(.7); } }
.qrs-hist-open { display: block; width: 64px; height: 64px; padding: 4px; border-radius: 12px; border: 1px solid var(--qrs-line); background: #fff; cursor: pointer; transition: transform .15s, border-color .15s; }
.qrs-hist-open:hover { transform: translateY(-2px); border-color: var(--qrs-accent); }
.qrs-hist-open img { width: 100%; height: 100%; display: block; border-radius: 6px; }
.qrs-hist-del { position: absolute; top: -6px; right: -6px; width: 22px; height: 22px; border-radius: 50%; border: 0; background: #0f172a; color: #fff; font-size: 13px; line-height: 22px; cursor: pointer; opacity: .85; padding: 0; }
.qrs-hist-del:hover { background: var(--qrs-bad); }
.qrs-history-empty { margin: 6px 0 0; font-size: 12.5px; color: var(--qrs-ink-3); }

/* ---------- design panel ---------- */
.qrs-block { margin-bottom: 20px; min-width: 0; }
.qrs-presets { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.qrs-preset { position: relative; display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 10px 6px 8px; border-radius: 14px; border: 1px solid var(--qrs-line); background: #fff; cursor: pointer; font-size: 12.5px; font-weight: 600; color: var(--qrs-ink-2); overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s; animation: qrs-rise .5s cubic-bezier(.2,.7,.2,1) both; animation-delay: calc(var(--i, 0) * 50ms); }
.qrs-preset-thumb { position: relative; width: 64px; height: 64px; border-radius: 10px; overflow: hidden; line-height: 0; }
.qrs-preset-thumb svg, .qrs-preset-thumb canvas { width: 100% !important; height: 100% !important; }
.qrs-preset-thumb::after { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,.65) 50%, transparent 65%); transform: translateX(-120%); animation: qrs-shine 3.6s ease-in-out infinite; animation-delay: calc(var(--i, 0) * 350ms); }
@keyframes qrs-shine { 0%, 60% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }
.qrs-preset:hover { transform: translateY(-3px); border-color: #c7d2fe; box-shadow: 0 10px 20px -12px rgba(79,70,229,.6); }
.qrs-preset:hover .qrs-preset-thumb { animation: qrs-wiggle .6s ease; }
@keyframes qrs-wiggle { 30% { transform: rotate(-4deg) scale(1.06); } 60% { transform: rotate(3deg) scale(1.06); } }
.qrs-preset[aria-checked="true"] { border-color: var(--qrs-accent); box-shadow: 0 0 0 2px var(--qrs-accent) inset; color: var(--qrs-accent); }

.qrs-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.qrs-sw { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 12px; border: 1px solid var(--qrs-line); background: #fff; color: #1e293b; cursor: pointer; transition: transform .15s, border-color .15s, background .15s; }
.qrs-sw svg { font-size: 28px; fill: currentColor; }
.qrs-sw:hover { transform: translateY(-2px); border-color: #c7d2fe; }
.qrs-sw[aria-checked="true"] { border-color: var(--qrs-accent); background: var(--qrs-accent-soft); color: var(--qrs-accent); box-shadow: 0 0 0 1px var(--qrs-accent) inset; }

.qrs-seg { display: inline-flex; flex-wrap: wrap; padding: 4px; gap: 2px; border-radius: 12px; background: var(--qrs-soft); margin-bottom: 12px; }
.qrs-seg button { border: 0; background: none; padding: 7px 12px; border-radius: 9px; font-size: 13.5px; font-weight: 600; color: var(--qrs-ink-2); cursor: pointer; min-height: 36px; transition: background .2s, color .2s, box-shadow .2s; }
.qrs-seg button[aria-checked="true"] { background: #fff; color: var(--qrs-accent); box-shadow: 0 1px 4px rgba(15,23,42,.12); }

.qrs-colors { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-bottom: 10px; }
.qrs-color { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 12px; border: 1px solid var(--qrs-line); font-size: 13px; font-weight: 600; cursor: pointer; min-width: 0; min-height: 44px; }
.qrs-color span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qrs-color input[type="color"] { width: 30px; height: 30px; padding: 0; border: 0; border-radius: 8px; background: none; cursor: pointer; flex: none; }
.qrs-color input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.qrs-color input[type="color"]::-webkit-color-swatch { border: 1px solid rgba(15,23,42,.15); border-radius: 8px; }
.qrs-color.is-off { opacity: .45; }
.qrs-color-inline { align-self: end; margin-bottom: 12px; }
.qrs-toggles { display: flex; flex-wrap: wrap; gap: 6px 22px; }

.qrs-logos { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.qrs-logo { position: relative; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; border: 1px solid var(--qrs-line); background: #fff; cursor: pointer; padding: 8px; transition: transform .15s, border-color .15s; }
.qrs-logo img { width: 100%; height: 100%; }
.qrs-logo:hover { transform: translateY(-2px); border-color: #c7d2fe; }
.qrs-logo[aria-checked="true"] { border-color: var(--qrs-accent); box-shadow: 0 0 0 1px var(--qrs-accent) inset; background: var(--qrs-accent-soft); }
.qrs-logo.is-suggested::after { content: "Suggested"; position: absolute; bottom: -7px; left: 50%; transform: translateX(-50%); padding: 0 5px; border-radius: 6px; background: #22c55e; color: #fff; font-size: 9px; font-weight: 700; line-height: 14px; white-space: nowrap; animation: qrs-pop .4s both; }
.qrs-logo-none { font-size: 11px; font-weight: 700; color: var(--qrs-ink-2); }
.qrs-upload { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; margin: 14px 0 10px; }
.qrs-file { cursor: pointer; }
#qrsLogoFile:focus-visible + .qrs-link-btn, .qrs-file:focus-within { outline: 3px solid var(--qrs-accent); }

.qrs-frames { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-bottom: 12px; }
.qrs-fr { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 10px 4px 8px; border-radius: 12px; border: 1px solid var(--qrs-line); background: #fff; font-size: 12.5px; font-weight: 600; color: var(--qrs-ink-2); cursor: pointer; transition: transform .15s, border-color .15s; }
.qrs-fr:hover { transform: translateY(-2px); border-color: #c7d2fe; }
.qrs-fr[aria-checked="true"] { border-color: var(--qrs-accent); color: var(--qrs-accent); box-shadow: 0 0 0 1px var(--qrs-accent) inset; }
.qrs-fr-art { position: relative; width: 38px; height: 44px; }
.qrs-fr-art::before { content: ""; position: absolute; left: 7px; top: 3px; width: 24px; height: 24px; background: repeating-conic-gradient(#334155 0 25%, #cbd5e1 0 50%) 0 0 / 8px 8px; border-radius: 2px; }
.fr-box { border: 3px solid #334155; border-radius: 4px; }
.fr-box::before { left: 4px; top: 2px; }
.fr-box::after { content: ""; position: absolute; left: 7px; right: 7px; bottom: 4px; height: 3px; border-radius: 2px; background: #334155; }
.fr-badge { background: #334155; border-radius: 8px; }
.fr-badge::before { left: 5px; top: 4px; width: 28px; height: 28px; background-color: #fff; border: 2px solid #fff; }
.fr-badge::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 4px; height: 3px; border-radius: 2px; background: #fff; }
.fr-ribbon::after { content: ""; position: absolute; left: 3px; right: 3px; bottom: 2px; height: 10px; border-radius: 4px; background: #334155; }

.qrs-advanced summary { cursor: pointer; font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--qrs-ink-2); padding: 6px 0; list-style: none; }
.qrs-advanced summary::-webkit-details-marker { display: none; }
.qrs-advanced summary::after { content: "+"; margin-left: 8px; color: var(--qrs-accent); }
.qrs-advanced[open] summary::after { content: "\2212"; }
.qrs-advanced[open] > *:not(summary) { animation: qrs-fade .3s both; }

/* ---------- how-to + links ---------- */
.qrs-how { margin: 34px 0 10px; padding: 26px; border-radius: var(--qrs-radius); background: linear-gradient(135deg, #1e1b4b, #312e81 55%, #4c1d95); color: #e0e7ff; position: relative; overflow: hidden; }
.qrs-how::before { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(167,139,250,.5), transparent 70%); animation: qrs-float 12s ease-in-out infinite alternate; }
.qrs-how .qrs-h2 { color: #fff; margin-bottom: 16px; position: relative; }
.qrs-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; position: relative; }
.qrs-steps li { display: flex; gap: 12px; padding: 14px; border-radius: 14px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.1); }
.qrs-steps li > span { display: grid; place-items: center; width: 30px; height: 30px; flex: none; border-radius: 50%; background: #fff; color: #4338ca; font-weight: 800; }
.qrs-steps strong { color: #fff; }
.qrs-steps p { margin: 2px 0 0; font-size: 13.5px; color: #c7d2fe; }
.qrs-privacy { position: relative; display: flex; align-items: center; gap: 8px; margin: 16px 0 14px; font-weight: 600; color: #fff; }
.qrs-privacy svg { font-size: 18px; fill: none; stroke: #86efac; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.qrs-xlinks { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.qrs-xlink { display: block; padding: 12px 14px; border-radius: 12px; background: #fff; color: var(--qrs-ink) !important; text-decoration: none !important; transition: transform .18s, box-shadow .18s; }
.qrs-xlink:hover { transform: translateY(-2px); box-shadow: 0 12px 24px -12px rgba(0,0,0,.5); }
.qrs-xlink strong { display: block; color: var(--qrs-accent); }
.qrs-xlink span { font-size: 13px; color: var(--qrs-ink-2); }
.qrs-ad { margin: 18px 0; }
.qrs-promo-wrap { margin-block: 10px 24px; }

/* ---------- toasts, mini preview, scratch ---------- */
.qrs-toasts { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 1080; display: grid; gap: 8px; width: max-content; max-width: calc(100vw - 32px); pointer-events: none; }
.qrs-toast { padding: 10px 16px; border-radius: 12px; background: #0f172a; color: #fff; font-size: 14px; font-weight: 500; box-shadow: 0 12px 30px -10px rgba(0,0,0,.5); animation: qrs-toast-in .35s cubic-bezier(.2,.8,.2,1.2) both; }
.qrs-toast.is-ok { background: #065f46; }
.qrs-toast.is-bad { background: #991b1b; }
.qrs-toast.is-out { animation: qrs-toast-out .3s ease both; }
@keyframes qrs-toast-in { from { opacity: 0; transform: translateY(16px) scale(.96); } }
@keyframes qrs-toast-out { to { opacity: 0; transform: translateY(8px); } }
.qrs-mini { position: fixed; right: 14px; bottom: 84px; z-index: 1050; width: 76px; height: 76px; padding: 6px; border-radius: 16px; border: 0; background: #fff; box-shadow: 0 12px 30px -8px rgba(15,23,42,.45), 0 0 0 2px var(--qrs-accent); cursor: pointer; animation: qrs-pop .3s both; }
.qrs-mini span, .qrs-mini img { display: block; width: 100%; height: 100%; }
.qrs-scratch { position: fixed; left: -10000px; top: 0; width: 600px; height: 600px; overflow: hidden; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
    .qrs-studio { grid-template-columns: minmax(0, 1fr) 350px; }
    .qrs-types { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .qrs-colors { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .qrs-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
    .qrs-studio { grid-template-columns: minmax(0, 1fr); grid-template-areas: "content" "preview" "design"; }
    .qrs-area-preview { position: static; }
    .qrs-hero-art { display: none; }
    .qrs-hero-inner { grid-template-columns: 1fr; }
    .qrs-xlinks { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
    .qrs { font-size: 14.5px; }
    .qrs-wrap { padding-inline: 14px; }
    .qrs-hero { padding: 26px 0 20px; }
    .qrs-lede { font-size: 15px; margin-bottom: 12px; }
    .qrs-badge:not(:first-child) { display: none; }
    .qrs-card { padding: 16px; border-radius: 18px; }
    .qrs-types { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
    .qrs-type { font-size: 11.5px; padding: 9px 2px 7px; }
    .qrs-row, .qrs-row-3 { grid-template-columns: 1fr; gap: 0; }
    .qrs-presets { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
    .qrs-preset { font-size: 11px; padding: 8px 2px 6px; }
    .qrs-preset-thumb { width: 54px; height: 54px; }
    .qrs-stage { min-height: 290px; padding: 16px; }
    .qrs-canvas { width: 230px; height: 230px; }
    .qrs-steps { grid-template-columns: 1fr; }
    .qrs-how { padding: 20px 16px; }
    .qrs-act-row { grid-template-columns: repeat(2, 1fr); }
    .qrs-frames { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .qrs-sw { width: 46px; height: 46px; }
}

@media (prefers-reduced-motion: reduce) {
    .qrs *, .qrs *::before, .qrs *::after { animation: none !important; transition: none !important; }
    .qrs-reveal { opacity: 1; transform: none; }
}