.qr-page { max-width: 1120px; margin: 0 auto; padding: 96px 16px 48px; color: var(--text-primary); --qr-ok: var(--color-success); --qr-warn: var(--color-warning); --qr-err: var(--color-danger-hover, #f87171); }
:root[data-theme="light"] .qr-page { --qr-ok: #15803d; --qr-warn: #b45309; --qr-err: #b91c1c; }
.qr-intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 8px; }
.qr-intro p { color: var(--text-secondary); margin: 0 0 24px; max-width: 70ch; }
.qr-grid { display: grid; gap: 24px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .qr-grid { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); align-items: start; } .qr-side { position: sticky; top: 88px; } }
.qr-form, .qr-side { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; min-width: 0; }
.qr-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.qr-tab { border: 1px solid var(--border-color); background: transparent; color: var(--text-primary); border-radius: 999px; padding: 6px 12px; cursor: pointer; font: inherit; }
.qr-tab.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.qr-tab-select { display: none; width: 100%; margin-bottom: 12px; }
@media (max-width: 599px) { .qr-tabs { display: none; } .qr-tab-select { display: block; } }
.qr-form fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; min-width: 0; }
.qr-page label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--text-secondary); min-width: 0; }
.qr-page input:not([type=checkbox]):not([type=color]):not([type=range]):not([type=file]), .qr-page textarea, .qr-page select {
  width: 100%; box-sizing: border-box; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border-color);
  background: var(--bg-primary); color: var(--text-primary); font: inherit; }
.qr-row { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); align-items: end; }
.qr-check { display: flex !important; align-items: center; gap: 8px; }
.qr-hint { color: var(--qr-warn); min-height: 0; font-size: 0.8rem; }
.qr-note, .qr-soft, .qr-test, .qr-private, .qr-msg { font-size: 0.85rem; color: var(--text-secondary); margin: 8px 0 0; }
.qr-error { color: var(--qr-err); font-size: 0.9rem; margin: 8px 0 0; min-height: 1em; }
.qr-warn { color: var(--qr-warn); font-size: 0.85rem; margin: 4px 0 0; }
.qr-preview { aspect-ratio: 1 / 1; display: grid; place-items: center; background: repeating-conic-gradient(#8881 0 25%, transparent 0 50%) 0 0 / 16px 16px; border-radius: 8px; overflow: hidden; }
.qr-preview canvas { width: 100%; height: auto; max-height: 100%; object-fit: contain; display: block; }
.qr-preview p { color: var(--text-secondary); padding: 16px; text-align: center; }
.qr-badge { font-weight: 600; margin: 10px 0 0; }
.qr-badge.ok { color: var(--qr-ok); }
.qr-badge.bad { color: var(--qr-warn); }
.qr-style, .qr-dl { margin-top: 16px; display: grid; gap: 10px; }
.qr-style summary { cursor: pointer; font-weight: 600; }
.qr-dl h2 { font-size: 1rem; margin: 0; }
.qr-link { background: none; border: 0; color: var(--color-primary); cursor: pointer; padding: 0; font: inherit; text-decoration: underline; }
.qr-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.qr-page button:disabled { opacity: 0.5; cursor: not-allowed; }

.qr-dl .nav-cta { background: var(--color-primary); color: #fff; border: 0; border-radius: 10px; padding: 9px 18px; cursor: pointer; font: inherit; font-weight: 600; }
.qr-dl .nav-cta--ghost { background: none; border: 1px solid var(--border-color); color: var(--text-primary); }
.qr-dl .qr-row--png { grid-template-columns: 1fr auto; }
.qr-side .qr-preview { max-width: 320px; margin: 0 auto; }
.qr-page .qr-file { position: relative; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.qr-file input[type=file] { position: absolute; opacity: 0; width: 1px; height: 1px; overflow: hidden; }
.qr-filebtn { display: inline-block; border: 1px solid var(--border-color); border-radius: 10px; padding: 8px 14px; color: var(--text-primary); cursor: pointer; font-weight: 600; }
.qr-file:focus-within .qr-filebtn { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.qr-filename { color: var(--text-secondary); font-size: 0.85rem; overflow-wrap: anywhere; }