* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1115; --card: #1a1d24; --card2: #0e1015; --border: #2a2f3a;
  --text: #e6e8ec; --muted: #9aa0ac; --accent: #6366f1; --accent2: #8b5cf6;
  --ok: #22c55e; --err: #ef4444;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1c2030, var(--bg));
  color: var(--text); min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1000px; margin: 0 auto; padding: 32px 16px 60px; }

/* Header */
.top { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.brand { font-size: 26px; font-weight: 800;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.brand .logo { -webkit-text-fill-color: initial; }
.tagline { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.back { color: var(--muted); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 18px; }
.back:hover { color: var(--text); }

/* Search */
.search { width: 100%; background: var(--card2); border: 1px solid var(--border);
  color: var(--text); padding: 13px 16px; border-radius: 12px; font-size: 15px;
  outline: none; margin-bottom: 26px; }
.search:focus { border-color: var(--accent); }

/* Category + grid */
.cat-title { display: flex; align-items: center; gap: 8px; font-size: 15px;
  font-weight: 700; color: var(--muted); text-transform: uppercase;
  letter-spacing: .04em; margin: 26px 0 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.tool-card { background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 16px; cursor: pointer; transition: all .15s;
  display: flex; gap: 12px; align-items: flex-start; }
.tool-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.tool-card .icon { font-size: 26px; line-height: 1; }
.tool-card .tname { font-weight: 600; margin-bottom: 3px; }
.tool-card .tdesc { color: var(--muted); font-size: 13px; line-height: 1.45; }

/* Tool page */
.card { background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 22px; margin-bottom: 18px; }
.tool-head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.tool-head .icon { font-size: 30px; }
.tool-head h1 { font-size: 22px; }
.tool-note { background: #2a2416; border: 1px solid #4a3f1e; color: #e8d9a8;
  border-radius: 10px; padding: 10px 14px; font-size: 13px; margin-bottom: 16px; }

/* Dropzone */
.drop { border: 2px dashed var(--border); border-radius: 14px; padding: 34px 20px;
  text-align: center; cursor: pointer; transition: all .15s; background: var(--card2); }
.drop:hover, .drop.over { border-color: var(--accent); background: #12141b; }
.drop .big { font-size: 40px; margin-bottom: 8px; }
.drop .hint { color: var(--muted); font-size: 14px; }
.filelist { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; }
.fileitem { display: flex; justify-content: space-between; align-items: center;
  background: var(--card2); border: 1px solid var(--border); border-radius: 9px;
  padding: 9px 12px; font-size: 14px; }
.fileitem .rm { color: var(--err); cursor: pointer; font-size: 18px; line-height: 1; }

/* Options */
.opt { margin-top: 16px; }
.opt label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
.opt select, .opt input[type=text], .opt input[type=number] {
  width: 100%; background: var(--card2); border: 1px solid var(--border);
  color: var(--text); padding: 12px 14px; border-radius: 10px; font-size: 15px; outline: none; }
.opt select:focus, .opt input:focus { border-color: var(--accent); }
.opt.check { display: flex; align-items: center; gap: 9px; }
.opt.check label { margin: 0; color: var(--text); }
.opt.check input { width: 18px; height: 18px; }

/* Button + status */
.btn { width: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #fff; border: none; padding: 15px; border-radius: 12px; font-size: 16px;
  font-weight: 700; cursor: pointer; margin-top: 20px; transition: opacity .2s; }
.btn:hover { opacity: .92; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.status { margin-top: 16px; text-align: center; font-size: 14px; color: var(--muted); }
.status.err { color: var(--err); }
.status.ok { color: var(--ok); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid #ffffff55;
  border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite;
  vertical-align: -3px; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }
.bar { height: 10px; background: var(--card2); border-radius: 20px; overflow: hidden;
  border: 1px solid var(--border); margin-top: 14px; }
.bar > div { height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width .3s; }
.hidden { display: none; }
.result-box { margin-top: 16px; text-align: center; }
.dl-link { display: inline-block; background: var(--ok); color: #04210f; font-weight: 700;
  padding: 13px 26px; border-radius: 12px; margin-top: 8px; }
.qr-preview { max-width: 260px; margin: 12px auto 0; display: block; border-radius: 12px;
  background: #fff; padding: 8px; }
.disclaimer { text-align: center; color: #6b7280; font-size: 12px; margin-top: 26px; line-height: 1.6; }