/* ── Polaris-inspired styles ────────────────────────────────────────
   Matches Shopify admin's look without requiring the Polaris-React
   bundler. Light theme, Inter font, Polaris color tokens.

   Polaris design tokens we use:
     --p-color-bg            #fafbfb   page bg
     --p-color-bg-surface    #ffffff   card surface
     --p-color-text          #303030   primary text
     --p-color-text-subdued  #707070   secondary text
     --p-color-border        #e3e3e3   subtle borders
     --p-color-action        #303030   primary action bg
     --p-color-success       #008060   Shopify green
     --p-color-critical      #d72c0d   error red
     --p-color-warning       #ffc453   warning yellow
*/

:root{
  --bg:#fafbfb; --surface:#ffffff; --text:#303030; --text-subdued:#707070;
  --border:#e3e3e3; --border-strong:#bdbdbd; --action:#303030; --action-hover:#1a1a1a;
  --success:#008060; --success-bg:#aee9d1; --critical:#d72c0d; --critical-bg:#fee9e7;
  --warning-bg:#ffea8a; --warning-text:#8a6116; --info-bg:#cce0ff; --info-text:#1f3d99;
  --radius:8px; --radius-sm:6px; --shadow:0 1px 0 rgba(0,0,0,.05),0 1px 2px rgba(0,0,0,.08);
  --shadow-hover:0 2px 4px rgba(0,0,0,.08),0 1px 6px rgba(0,0,0,.06);
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;font-size:14px;line-height:1.4;min-height:100vh}
body{padding:0 0 40px}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit}
input,textarea,select{font-family:inherit;font-size:14px;background:var(--surface);color:var(--text);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:7px 12px;width:100%;line-height:1.4}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--action);box-shadow:0 0 0 2px rgba(48,48,48,.15)}
textarea{resize:vertical;min-height:80px;font-family:inherit}
label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:4px}
h1,h2,h3{margin:0;font-weight:600;color:var(--text)}
h1{font-size:20px;letter-spacing:-.01em}
h2{font-size:16px}
h3{font-size:14px;font-weight:600}
a{color:#005bd3;text-decoration:none}
a:hover{text-decoration:underline}

/* ── Layout ───────────────────────────────────────────────────── */
.app{max-width:1000px;margin:0 auto;padding:20px 16px}
.page-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.page-title h1{margin:0}
.page-title .subtitle{font-size:13px;color:var(--text-subdued);margin-top:2px}

/* ── Card (Polaris-style container) ───────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:16px}
.card-header{font-size:14px;font-weight:600;color:var(--text);margin-bottom:12px;padding-bottom:0}
.card-section{padding:12px 0;border-top:1px solid var(--border)}
.card-section:first-child{border-top:none;padding-top:0}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;line-height:1.4;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);cursor:pointer;transition:.15s}
.btn:hover{background:#f6f6f7}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--action);color:#fff;border-color:var(--action)}
.btn-primary:hover{background:var(--action-hover)}
.btn-primary:disabled{opacity:.4}
.btn-critical{background:var(--critical);color:#fff;border-color:var(--critical)}
.btn-small{padding:4px 10px;font-size:12px}
.btn-plain{border:none;background:none;color:#005bd3;padding:4px 8px;font-weight:500}
.btn-plain:hover{background:#f6f6f7;text-decoration:none}

/* ── Field layout ─────────────────────────────────────────────── */
.field{margin-bottom:14px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.field-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin-bottom:14px}
.field-help{font-size:12px;color:var(--text-subdued);margin-top:4px}
@media (max-width:700px){.field-row,.field-row-3{grid-template-columns:1fr}}

/* ── Banner (info/warning/error/success) ──────────────────────── */
.banner{padding:12px 14px;border-radius:var(--radius);margin-bottom:14px;font-size:13px;display:flex;gap:10px;align-items:flex-start}
.banner.success{background:var(--success-bg);color:#0a3d2e}
.banner.warning{background:var(--warning-bg);color:var(--warning-text)}
.banner.critical{background:var(--critical-bg);color:#7a1a05}
.banner.info{background:var(--info-bg);color:var(--info-text)}
.banner-title{font-weight:600;margin-bottom:2px}

/* ── Drop zone ────────────────────────────────────────────────── */
.dropzone{border:2px dashed var(--border-strong);border-radius:var(--radius);padding:32px;text-align:center;background:#fafbfb;cursor:pointer;transition:.15s}
.dropzone:hover{background:#f1f2f3;border-color:#909090}
.dropzone.dragging{border-color:var(--action);background:#f1f2f3}
.dropzone strong{display:block;font-weight:600;font-size:14px;margin-bottom:4px;color:var(--text)}
.dropzone small{font-size:13px;color:var(--text-subdued)}

/* ── Image thumbnails ─────────────────────────────────────────── */
.thumbs{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.thumb{position:relative;width:110px;height:110px;border:2px solid var(--border-strong);border-radius:var(--radius-sm);overflow:hidden;cursor:pointer;background:#000;flex-shrink:0;transition:.15s}
.thumb:hover{border-color:#707070}
.thumb.scan-selected{border-color:var(--action);box-shadow:0 0 0 2px rgba(48,48,48,.2)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.thumb .order{position:absolute;top:4px;left:4px;background:rgba(0,0,0,.7);color:#fff;font-size:11px;font-weight:700;padding:2px 6px;border-radius:4px;line-height:1}
.thumb .scan-badge{position:absolute;top:4px;right:4px;background:var(--action);color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;line-height:1;text-transform:uppercase}
.thumb .del{position:absolute;bottom:4px;right:4px;background:rgba(0,0,0,.7);color:#fff;width:22px;height:22px;border-radius:11px;font-size:14px;line-height:22px;text-align:center;padding:0;border:none}
.thumb .del:hover{background:var(--critical)}
.thumb.dragging-ghost{opacity:.3}
.thumbs-help{font-size:12px;color:var(--text-subdued);margin-top:8px;margin-bottom:4px}

/* ── Chip input ───────────────────────────────────────────────── */
.chip-input{display:flex;flex-wrap:wrap;gap:6px;padding:6px;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);min-height:36px;align-items:center}
.chip-input:focus-within{border-color:var(--action);box-shadow:0 0 0 2px rgba(48,48,48,.15)}
.chip-input input{border:none;background:transparent;padding:3px 4px;flex:1;min-width:120px;width:auto;box-shadow:none}
.chip-input input:focus{box-shadow:none}
.chip{background:#e3e3e3;color:var(--text);font-size:12px;padding:3px 8px;border-radius:4px;display:inline-flex;align-items:center;gap:5px;font-weight:500}
.chip .x{cursor:pointer;color:var(--text-subdued);font-weight:700;font-size:14px;line-height:1}
.chip .x:hover{color:var(--critical)}

/* ── Checkbox + toggle ────────────────────────────────────────── */
.toggle{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);cursor:pointer;user-select:none;font-weight:400}
.toggle input{width:auto;margin:0;padding:0;cursor:pointer}

/* ── Variant row ──────────────────────────────────────────────── */
.variant-row{display:flex;gap:10px;align-items:flex-start;padding:12px;background:#fafbfb;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px}
.variant-row .v-thumb{width:60px;height:60px;border-radius:var(--radius-sm);overflow:hidden;background:#000;flex-shrink:0}
.variant-row .v-thumb img{width:100%;height:100%;object-fit:cover}
.variant-row .v-fields{flex:1;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:8px}
.variant-row .v-fields input{font-size:13px;padding:5px 8px}
.variant-row .v-fields label{font-size:11px;font-weight:500;margin-bottom:2px}
.variant-row .v-preview{grid-column:1 / -1;font-size:12px;color:var(--text-subdued);margin-top:4px}
.variant-row .v-preview strong{color:var(--text);font-weight:600}
@media (max-width:700px){.variant-row .v-fields{grid-template-columns:1fr 1fr}}

/* ── Description preview ──────────────────────────────────────── */
.preview-desc{background:#fafbfb;border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;font-size:14px;color:var(--text);max-height:340px;overflow-y:auto}
.preview-desc h3{font-size:15px;font-weight:600;margin:14px 0 6px;color:var(--text)}
.preview-desc h3:first-child{margin-top:0}
.preview-desc p{margin:0 0 10px;line-height:1.5}
.preview-desc ul{margin:0 0 10px;padding-left:20px}
.preview-desc li{line-height:1.5;margin-bottom:3px}

/* ── Spinner ──────────────────────────────────────────────────── */
.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--action);border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:6px}
.btn-primary .spinner{border-color:rgba(255,255,255,.3);border-top-color:#fff}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Loading / boot screens ───────────────────────────────────── */
.boot{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;color:var(--text-subdued);gap:12px}
.boot .spinner{width:24px;height:24px;border-width:3px}

/* ── Success screen ───────────────────────────────────────────── */
.success-screen{max-width:540px;margin:40px auto;padding:30px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center}
.success-screen h2{color:var(--success);font-size:24px;margin-bottom:8px}
.success-screen p{color:var(--text-subdued);font-size:14px;margin:0 0 18px}
.success-screen .btn-row{display:flex;gap:8px;justify-content:center}

.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

.muted{color:var(--text-subdued);font-size:12px}
.price-hint{font-size:12px;color:var(--text-subdued);margin-top:4px}
.price-hint strong{color:var(--action);font-weight:600}

/* Standalone page (when accessed outside Shopify) */
.standalone{max-width:480px;margin:80px auto;padding:30px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center}
.standalone h2{font-size:20px;margin-bottom:10px}
.standalone p{color:var(--text-subdued);font-size:14px;margin-bottom:18px}