/* ===== DevKit shared styles — Precision Instrument (dark) theme ===== */
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 700;font-display:swap;
  src:url('fonts/jetbrains-mono.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400 700;font-display:swap;
  src:url('fonts/space-grotesk.woff2') format('woff2')}
:root{
  --royal:#2fd27a;--royal-600:#1a9d5a;--royal-700:#15803d;
  --navy:#0e130f;--navy-800:#0b0f0c;--sky:#5fe39a;--accent:#5fe39a;
  --bg:#0b0f0c;--card:#0f150f;--text:#eaf0ea;--muted:#83987f;
  --muted-faint:#6f826f;--label:#4d5f4d;
  --border:rgba(255,255,255,.07);--border-strong:rgba(255,255,255,.12);
  --ad:rgba(255,255,255,.02);--ad-border:rgba(255,255,255,.1);
  --ok:#2fd27a;--err:#f87171;
  --shadow:0 10px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
.container{max-width:960px;margin:0 auto;padding:0 22px}

h1,h2,h3,.btn,.brand,.nav-links a{font-family:'Space Grotesk',system-ui,sans-serif}
label.field,.mono,.nav .back,.cat-title,.go,.stat-line,textarea,.crumb,.related-bar .related-label{
  font-family:'JetBrains Mono',ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace}

/* Header */
header{position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--card) 82%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:14px;padding:14px 22px;max-width:1180px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem}
.brand .mark{width:28px;height:28px;object-fit:contain;display:block}
.brand span{color:var(--royal)}
.nav .back{margin-left:auto;color:var(--muted);font-weight:500;font-size:.85rem;transition:color .2s;
  display:inline-flex;align-items:center;min-height:44px;padding:4px 0}
.nav .back:hover{color:var(--royal)}

/* Breadcrumb (tool detail pages) */
.crumb{font-size:.78rem;color:var(--muted-faint);margin-bottom:16px}
.crumb a{color:var(--muted-faint);transition:color .15s}
.crumb a:hover{color:var(--muted)}
.crumb .crumb-current{color:var(--royal)}

/* Tool hero */
.tool-hero{background:var(--bg);padding:40px 0 32px;text-align:left;border-bottom:1px solid var(--border)}
.hero-head{display:flex;align-items:flex-start;gap:18px}
.hero-head .code-avatar{flex:0 0 auto;width:54px;height:54px;border-radius:13px;
  border:1px solid color-mix(in srgb,var(--royal) 32%,transparent);
  background:color-mix(in srgb,var(--royal) 8%,var(--bg));
  display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-weight:600;font-size:1.1rem;color:var(--sky)}
.tool-hero h1{font-size:1.9rem;font-weight:600;letter-spacing:-.02em;margin-bottom:8px;color:var(--text)}
.tool-hero h1 .qualifier{color:var(--muted);font-weight:400}
.tool-hero p{color:var(--muted);max-width:560px}

/* Panel */
main{padding:40px 0 60px}
.panel{background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:28px;box-shadow:var(--shadow);margin-bottom:22px}
.panel h2{font-size:1.05rem;font-weight:600;margin-bottom:16px;color:var(--text)}

/* Eyebrow section label (SETTINGS / LIVE PREVIEW / FILE ORDER / OPTIONS / OUTPUT) */
.panel-label{font-family:'JetBrains Mono',monospace;font-size:.7rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--royal);margin-bottom:16px;
  display:flex;align-items:center;justify-content:space-between;gap:10px}
.panel-label .note{font-weight:500;letter-spacing:.02em;text-transform:none;color:var(--muted-faint);font-size:.72rem}

/* Two-column tool layout: settings/upload on the left, preview or file-order on the right */
.tool-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:20px;align-items:start}
.tool-grid .col-left{display:flex;flex-direction:column;gap:16px}
.tool-grid .panel{margin-bottom:0}
@media (max-width:880px){.tool-grid{grid-template-columns:1fr}}

/* Live preview document mockup */
.doc-preview{display:flex;align-items:center;justify-content:center;min-height:260px;
  background:color-mix(in srgb,var(--royal) 2%,var(--bg));border-radius:10px;padding:20px;position:relative}
.doc-preview-empty{color:var(--muted-faint);font-size:.85rem;text-align:center;max-width:220px}

/* Explainer panels — 2-up grid */
.explainer-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.explainer-grid .panel{margin-bottom:0}
@media (max-width:720px){.explainer-grid{grid-template-columns:1fr}}

/* File order list (multi-file archetype: merge / image-to-pdf) */
.file-order{display:flex;flex-direction:column;gap:10px}
.file-order-row{display:flex;align-items:center;gap:12px;padding:12px 14px;
  border:1px solid var(--border);border-radius:10px;background:var(--bg)}
.file-order-row .drag-handle{color:var(--label);font-size:.9rem;cursor:grab;flex:0 0 auto}
.file-order-row .num{flex:0 0 auto;width:28px;height:28px;border-radius:7px;
  background:color-mix(in srgb,var(--royal) 10%,transparent);display:grid;place-items:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.72rem;color:var(--royal)}
.file-order-row .fo-info{flex:1;min-width:0}
.file-order-row .fo-name{font-weight:600;font-size:.86rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-order-row .fo-size{font-size:.72rem;color:var(--muted-faint);margin-top:3px;font-family:'JetBrains Mono',monospace}
.file-order-row .fo-actions{display:flex;gap:5px;flex:0 0 auto}
.file-order-row .fo-actions button{width:26px;height:26px;border-radius:6px;border:1px solid var(--border-strong);
  background:transparent;color:var(--muted);font-size:.78rem;cursor:pointer;display:grid;place-items:center;transition:.15s}
.file-order-row .fo-actions button:hover{border-color:var(--royal);color:var(--royal)}

/* Before/after image comparison (image tool preview panels) */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.compare-box{aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:color-mix(in srgb,var(--royal) 3%,var(--bg));
  display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}
.compare-box img{width:100%;height:100%;object-fit:cover;display:block}
.compare-box.checker{background-image:linear-gradient(45deg,#1c221c 25%,transparent 25%),linear-gradient(-45deg,#1c221c 25%,transparent 25%),
  linear-gradient(45deg,transparent 75%,#1c221c 75%),linear-gradient(-45deg,transparent 75%,#1c221c 75%);
  background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0;background-color:#0f150f}
.compare-label{text-align:center;margin-top:8px;font:500 .72rem/1 'JetBrains Mono',monospace;color:var(--muted-faint)}
.compare-label.accent{color:var(--royal)}
.compare-empty{color:var(--muted-faint);font-size:.75rem;text-align:center;padding:10px}

/* Dropzone */
.drop{border:2px dashed color-mix(in srgb,var(--royal) 35%,transparent);border-radius:14px;padding:44px 20px;text-align:center;
  cursor:pointer;transition:.2s;background:color-mix(in srgb,var(--royal) 3%,var(--bg))}
.drop:hover,.drop.drag{border-color:var(--royal);background:color-mix(in srgb,var(--royal) 8%,var(--bg))}
.drop .big{font-size:2.4rem;margin-bottom:10px}
.drop p{color:var(--muted)}
.drop b{color:var(--royal)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;
  border-radius:10px;padding:12px 22px;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s,color .2s;
  cursor:pointer;border:none;font-size:.94rem}
.btn-primary{background:var(--royal);color:#04160c;box-shadow:0 6px 18px rgba(47,210,122,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(47,210,122,.42)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--text);border:1.5px solid var(--border-strong)}
.btn-ghost:hover{border-color:var(--royal);color:var(--royal)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}

/* Form controls */
label.field{display:block;font-weight:500;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;margin:14px 0 7px;color:var(--muted)}
input[type=text],input[type=number],select,textarea{width:100%;font-family:inherit;font-size:.95rem;
  padding:11px 14px;border:1.5px solid var(--border-strong);border-radius:10px;background:var(--bg);color:var(--text);transition:border .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--royal)}
textarea{resize:vertical;min-height:150px}
input[type=range]{width:100%;accent-color:var(--royal)}
.row{display:flex;gap:16px;flex-wrap:wrap}
.row>div{flex:1;min-width:160px}

/* Output / result */
.result{margin-top:18px}
.thumb{max-width:100%;border-radius:12px;border:1px solid var(--border);margin-top:12px}
.stat-line{display:flex;gap:24px;flex-wrap:wrap;margin:14px 0;color:var(--muted);font-size:.85rem}
.stat-line b{color:var(--text)}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700}
.badge.ok{background:color-mix(in srgb,var(--ok) 15%,transparent);color:var(--ok)}
.badge.err{background:color-mix(in srgb,var(--err) 15%,transparent);color:var(--err)}
.hidden{display:none!important}
.swatch{width:100%;height:120px;border-radius:12px;border:1px solid var(--border)}

/* Multi-file list (batch image tools) */
.file-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.file-row{display:flex;align-items:center;gap:14px;background:var(--bg);border:1px solid var(--border);
  border-radius:12px;padding:10px 14px}
.file-row .row-thumb{flex:0 0 56px;width:56px;height:56px;border-radius:8px;background:var(--card);
  display:flex;align-items:center;justify-content:center;overflow:hidden}
.file-row .row-thumb img{max-width:100%;max-height:100%;object-fit:contain}
.file-row .row-info{flex:1;min-width:0}
.file-row .fname{font-size:.9rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-row .fsize{font-size:.78rem;color:var(--muted-faint)}
.file-row .card-status{font-size:.78rem;margin-top:2px;color:var(--ok);min-height:1.1em}
.file-row .card-status.err{color:var(--err)}
.file-row .card-action{flex:0 0 auto;width:150px;font-size:.85rem;padding:10px 12px;justify-content:center}
.file-row .remove{flex:0 0 36px;width:36px;height:36px;border-radius:9px;
  background:var(--card);color:var(--muted);border:1.5px solid var(--border);cursor:pointer;font-size:1rem;line-height:1;
  display:grid;place-items:center;transition:.15s}
.file-row .remove:hover{background:var(--err);color:#1a0a0a;border-color:var(--err)}
@media (max-width:560px){
  .file-row{flex-wrap:wrap}
  .file-row .card-action{width:auto;flex:1 1 auto;order:1}
  .file-row .remove{order:2}
  .file-row .row-info{flex:1 1 100%;order:0}
}

/* Segmented choice control (replaces <select> for a few visible options) */
.seg-group{display:flex;flex-wrap:wrap;gap:8px}
.seg-btn{padding:10px 16px;border-radius:9px;border:1.5px solid var(--border-strong);background:var(--bg);
  color:var(--text);font-size:.88rem;font-weight:500;cursor:pointer;transition:.15s;font-family:inherit}
.seg-btn:hover{border-color:var(--royal)}
.seg-btn.active{background:var(--royal);color:#04160c;
  border-color:transparent;box-shadow:0 4px 14px rgba(47,210,122,.3)}
.seg-btn:disabled{opacity:.4;cursor:not-allowed}
.seg-btn:disabled:hover{border-color:var(--border-strong)}

/* Ad slot */
.ad-slot{max-width:728px;margin:26px auto;min-height:100px}

/* Related tools bar */
.related-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.related-bar .related-label{font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--royal)}
.related-bar a{font-size:.9rem;color:var(--text);transition:color .15s}
.related-bar a:hover{color:var(--royal)}
.related-bar a .mono{font-family:'JetBrains Mono',monospace;color:var(--royal);margin-right:5px;font-size:.82rem}
.related-bar .sep{color:var(--label)}

/* Footer */
footer{background:var(--navy);color:var(--muted-faint);padding:34px 0;text-align:center;font-size:.85rem}
footer a{color:var(--sky)}

/* Preview overlay (result review before download) */
.preview-overlay{position:fixed;inset:0;z-index:200;background:rgba(2,4,3,.75);
  display:flex;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(3px)}
.preview-modal{background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:24px;max-width:640px;width:100%;max-height:90vh;overflow:auto;
  box-shadow:0 24px 60px rgba(0,0,0,.5)}
.preview-canvas-wrap{margin-top:14px;border-radius:12px;border:1px solid var(--border);
  overflow:auto;max-height:50vh;display:flex;align-items:center;justify-content:center;
  background-image:linear-gradient(45deg,#1c221c 25%,transparent 25%),linear-gradient(-45deg,#1c221c 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#1c221c 75%),linear-gradient(-45deg,transparent 75%,#1c221c 75%);
  background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;background-color:#0f150f}
.preview-canvas-wrap canvas{max-width:100%;display:block}

@media (max-width:600px){.tool-hero h1{font-size:1.5rem}.panel{padding:20px}}

/* Ad-block notice */
.adblock-banner{position:fixed;left:16px;right:16px;bottom:-140px;z-index:300;max-width:560px;
  margin:0 auto;background:var(--card);border:1px solid var(--border);border-left:4px solid var(--royal);
  border-radius:14px;box-shadow:var(--shadow-hover);padding:16px 44px 16px 18px;
  font-size:.88rem;color:var(--text);line-height:1.55;transition:bottom .35s ease}
.adblock-banner.show{bottom:16px}
.adblock-banner-text b{color:var(--royal)}
.adblock-banner-close{position:absolute;top:8px;right:10px;width:28px;height:28px;border:none;
  background:transparent;color:var(--muted);font-size:1.3rem;line-height:1;cursor:pointer;
  border-radius:7px;display:grid;place-items:center;transition:.15s}
.adblock-banner-close:hover{background:var(--card);color:var(--text)}
@media (max-width:480px){.adblock-banner{left:10px;right:10px;padding:14px 40px 14px 14px}}