:root{
  --paper:#f2f3f6;
  --surface:#ffffff;
  --ink:#14151a;
  --muted:#6b7180;
  --line:#e5e7ef;
  --line-strong:#d3d7e3;
  --accent:#0d8a5f;
  --accent-strong:#0a6f4c;
  --accent-soft:#e4f4ee;
  --danger:#c8362f;
  --radius:14px;
  --shadow:0 1px 2px rgba(20,21,26,.04), 0 8px 30px rgba(20,21,26,.06);
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font-family:"Inter",system-ui,sans-serif;color:var(--ink);background:var(--paper);
  background-image:linear-gradient(rgba(20,21,26,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(20,21,26,.022) 1px,transparent 1px);
  background-size:22px 22px;line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh;
}

/* ---------- Topbar ---------- */
.topbar{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar-inner{max-width:1120px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:15px;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-family:"Space Grotesk",sans-serif;font-size:15px;letter-spacing:.01em}
.brand-text span{font-size:11.5px;color:var(--muted)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{text-decoration:none;color:var(--muted);font-size:13.5px;font-weight:500;padding:7px 12px;border-radius:8px;transition:all .12s}
.nav a:hover{color:var(--ink);background:#f4f5f8}
.nav a.on{color:var(--accent-strong);background:var(--accent-soft)}
.nav a.out{color:var(--muted)}
.nav a.out:hover{color:var(--danger);background:#fdeeed}

.wrap{max-width:1120px;margin:0 auto;padding:26px 20px 64px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.eyebrow{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:500}
.page-title{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:clamp(24px,3.5vw,32px);letter-spacing:-.02em;margin:5px 0 0}

.grid{display:grid;grid-template-columns:1fr 400px;gap:22px;align-items:start}
@media (max-width:880px){.grid{grid-template-columns:1fr}}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.section{padding:18px 20px;border-top:1px solid var(--line)}
.section:first-child{border-top:none}
.section h2{font-family:"Space Grotesk",sans-serif;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.section h2 .n{font-family:"JetBrains Mono",monospace;color:var(--accent);font-size:11px;font-weight:500}

.types{display:flex;flex-wrap:wrap;gap:8px}
.type-btn{appearance:none;border:1px solid var(--line-strong);background:#fff;color:var(--ink);font-family:inherit;font-size:13px;font-weight:500;padding:8px 12px;border-radius:10px;cursor:pointer;display:flex;align-items:center;gap:7px;transition:all .12s}
.type-btn svg{width:15px;height:15px}
.type-btn:hover{border-color:var(--accent);color:var(--accent-strong)}
.type-btn[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}

label.field{display:block;margin-bottom:14px}
label.field:last-child{margin-bottom:0}
.lab{display:block;font-size:12.5px;font-weight:500;color:var(--ink);margin-bottom:6px}
.hint{font-size:11.5px;color:var(--muted);margin-top:5px;line-height:1.45}
input[type=text],input[type=url],input[type=tel],input[type=email],input[type=password],textarea,select{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink);background:#fbfbfd;border:1px solid var(--line-strong);border-radius:10px;padding:10px 12px;transition:border-color .12s,box-shadow .12s;
}
textarea{resize:vertical;min-height:76px}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:420px){.row2{grid-template-columns:1fr}}

.color-ctrl{display:flex;align-items:center;gap:10px}
.swatch{position:relative;width:38px;height:38px;border-radius:10px;overflow:hidden;border:1px solid var(--line-strong);flex:none;cursor:pointer;
  background-image:linear-gradient(45deg,#ddd 25%,transparent 25%),linear-gradient(-45deg,#ddd 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ddd 75%),linear-gradient(-45deg,transparent 75%,#ddd 75%);background-size:10px 10px;background-position:0 0,0 5px,5px -5px,-5px 0}
.swatch input[type=color]{position:absolute;inset:-6px;width:150%;height:150%;border:none;padding:0;cursor:pointer}
.swatch .fill{position:absolute;inset:0;pointer-events:none}
.hex{font-family:"JetBrains Mono",monospace;font-size:13px;text-transform:uppercase;width:100%}
.color-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:420px){.color-grid{grid-template-columns:1fr}}

.toggle{display:flex;align-items:center;gap:9px;cursor:pointer;font-size:13px;color:var(--ink);user-select:none;position:relative}
.toggle input{position:absolute;opacity:0;width:0;height:0}
.track{width:38px;height:22px;border-radius:20px;background:var(--line-strong);position:relative;transition:background .15s;flex:none}
.track::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:transform .15s}
.toggle input:checked + .track{background:var(--accent)}
.toggle input:checked + .track::after{transform:translateX(16px)}
.toggle input:focus-visible + .track{box-shadow:0 0 0 3px var(--accent-soft)}

.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line-strong);background:#fff;border-radius:10px;padding:8px 10px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:6px;font-size:11.5px;color:var(--muted);transition:all .12s;min-width:64px;font-weight:500}
.chip svg{width:26px;height:26px}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{border-color:var(--accent);color:var(--accent-strong);background:var(--accent-soft)}

.slider-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.slider-row:last-child{margin-bottom:0}
.slider-row .lab{margin:0;flex:none;width:96px;font-size:12.5px}
input[type=range]{flex:1;accent-color:var(--accent);height:4px}
.val{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted);width:44px;text-align:right;flex:none}

.logo-drop{border:1.5px dashed var(--line-strong);border-radius:12px;padding:16px;text-align:center;cursor:pointer;transition:all .12s;background:#fbfbfd}
.logo-drop:hover{border-color:var(--accent);background:var(--accent-soft)}
.logo-drop.has{padding:12px}
.logo-preview{display:flex;align-items:center;gap:12px;text-align:left}
.logo-preview img{width:44px;height:44px;object-fit:contain;border-radius:8px;border:1px solid var(--line);background:#fff;flex:none}
.logo-preview .meta{flex:1;min-width:0}
.logo-preview .meta b{font-size:13px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.logo-preview .meta span{font-size:11.5px;color:var(--muted)}
.mini-btn{border:1px solid var(--line-strong);background:#fff;border-radius:8px;padding:6px 10px;font-family:inherit;font-size:12px;cursor:pointer;color:var(--ink)}
.mini-btn:hover{border-color:var(--accent);color:var(--accent-strong)}

.adv-toggle{background:none;border:none;color:var(--accent);font-family:inherit;font-size:12.5px;font-weight:500;cursor:pointer;padding:0;display:flex;align-items:center;gap:5px}
.adv-toggle svg{width:13px;height:13px;transition:transform .15s}
.adv-toggle[aria-expanded="true"] svg{transform:rotate(90deg)}
.adv-body{margin-top:16px}
[hidden]{display:none !important}

/* ---------- Preview ---------- */
.preview-panel{position:sticky;top:82px}
.stage{padding:26px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 40%,#fff,#f6f7fb);border-bottom:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;position:relative;min-height:300px}
.frame{position:relative;padding:14px;border-radius:16px;background:#fff;box-shadow:0 10px 34px rgba(20,21,26,.10)}
.frame::before,.frame::after,.frame .b3,.frame .b4{content:"";position:absolute;width:16px;height:16px;border:2px solid var(--accent);opacity:.55}
.frame::before{top:-6px;left:-6px;border-right:none;border-bottom:none;border-radius:4px 0 0 0}
.frame::after{top:-6px;right:-6px;border-left:none;border-bottom:none;border-radius:0 4px 0 0}
.frame .b3{bottom:-6px;left:-6px;border-right:none;border-top:none;border-radius:0 0 0 4px}
.frame .b4{bottom:-6px;right:-6px;border-left:none;border-top:none;border-radius:0 0 4px 0}
#qr-canvas{display:block;width:230px;height:230px;border-radius:4px}
.empty-state{text-align:center;color:var(--muted);font-size:13px;max-width:220px}
.empty-state svg{width:40px;height:40px;opacity:.35;margin-bottom:10px}

.pv-body{padding:18px 20px}
.encoded{font-family:"JetBrains Mono",monospace;font-size:11.5px;color:var(--muted);background:#fbfbfd;border:1px solid var(--line);border-radius:10px;padding:9px 11px;max-height:64px;overflow:auto;word-break:break-all;margin-bottom:14px;line-height:1.5}
.encoded b{color:var(--ink);font-weight:500}

.save-row{display:flex;gap:8px;margin-bottom:12px}
.save-row input{flex:1}
.save-row .btn{flex:none;white-space:nowrap}

.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.dl-grid .full{grid-column:1 / -1}
.btn{font-family:inherit;font-weight:600;font-size:13.5px;border-radius:10px;cursor:pointer;padding:11px 14px;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;transition:all .12s}
.btn svg{width:16px;height:16px}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-strong)}
.btn.ghost{background:#fff;border-color:var(--line-strong);color:var(--ink)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent-strong)}
.btn:disabled{opacity:.5;cursor:not-allowed}

.note{display:flex;gap:8px;font-size:11.5px;color:var(--muted);margin-top:14px;line-height:1.5;background:var(--accent-soft);border-radius:10px;padding:10px 12px}
.note svg{width:15px;height:15px;flex:none;margin-top:1px;color:var(--accent)}
.note.warn{background:#fdeeed;color:#93332d}
.note.warn svg{color:var(--danger)}

/* ---------- Toast ---------- */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 18px;border-radius:10px;font-size:13px;font-weight:500;opacity:0;pointer-events:none;transition:all .25s;z-index:50;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Login ---------- */
.login-body{display:grid;place-items:center;min-height:100vh;padding:20px}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:34px 30px;width:100%;max-width:360px;text-align:center}
.login-mark{width:52px;height:52px;border-radius:13px;background:var(--accent);color:#fff;display:grid;place-items:center;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:20px;margin:0 auto 16px}
.login-card h1{font-family:"Space Grotesk",sans-serif;font-size:21px;margin:0 0 3px;letter-spacing:-.01em}
.login-sub{color:var(--muted);font-size:13px;margin:0 0 22px}
.login-card form{text-align:left}
.login-card .lab{margin-bottom:7px}
.login-err{background:#fdeeed;color:#93332d;border-radius:10px;padding:9px 12px;font-size:12.5px;margin-bottom:16px;text-align:left}
.login-foot{margin-top:20px;font-size:11.5px;color:var(--muted)}

/* ---------- Galería ---------- */
.gallery-status{color:var(--muted);font-size:13.5px;padding:8px 0 18px}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.qr-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.qr-card .thumb{background:repeating-conic-gradient(#f4f5f8 0% 25%,#fff 0% 50%) 50% / 18px 18px;padding:20px;display:flex;justify-content:center}
.qr-card .thumb img{width:150px;height:150px;object-fit:contain;background:#fff;border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.qr-card .info{padding:14px 15px;flex:1;display:flex;flex-direction:column;gap:6px}
.qr-card .qr-name{font-weight:600;font-size:14px;line-height:1.3;word-break:break-word}
.qr-badge{display:inline-flex;align-self:flex-start;align-items:center;gap:5px;font-size:10.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent-strong);background:var(--accent-soft);border-radius:20px;padding:3px 9px}
.qr-content{font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--muted);word-break:break-all;line-height:1.5;max-height:48px;overflow:hidden}
.qr-date{font-size:11px;color:var(--muted);margin-top:auto}
.qr-actions{display:flex;gap:8px;padding:0 15px 15px}
.qr-actions button,.qr-actions a{flex:1;font-family:inherit;font-size:12.5px;font-weight:500;border-radius:9px;padding:8px;cursor:pointer;text-align:center;text-decoration:none;border:1px solid var(--line-strong);background:#fff;color:var(--ink);transition:all .12s}
.qr-actions .dl:hover{border-color:var(--accent);color:var(--accent-strong)}
.qr-actions .del{color:var(--danger);flex:none;width:40px;display:grid;place-items:center}
.qr-actions .del:hover{background:#fdeeed;border-color:var(--danger)}
.qr-actions .del svg{width:15px;height:15px}
.gallery-empty{grid-column:1/-1;text-align:center;color:var(--muted);font-size:14px;padding:50px 20px;border:1.5px dashed var(--line-strong);border-radius:var(--radius)}
.gallery-empty a{color:var(--accent-strong);font-weight:500}

@media (prefers-reduced-motion:reduce){*{transition:none !important}}