:root {
  --bg:      #0f172a;
  --surface: #1e293b;
  --border:  #334155;
  --muted:   #475569;
  --dim:     #64748b;
  --text:    #cbd5e1;
  --bright:  #f1f5f9;
  --accent:  #3b82f6;
  --accent2: #2563eb;
  --link:    #38bdf8;
  --ok:      #86efac;
  --ok-bg:   #14532d;
  --err:     #f87171;
  --r:       8px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* layout */
.wrap { max-width: 900px; margin: 0 auto; padding: 20px 16px; }
h1 { font-size: 18px; font-weight: 700; color: var(--bright); margin-bottom: 16px; }
h1 a { color: inherit; }

/* nav */
nav.tabs { display: flex; overflow-x: auto; border-bottom: 1px solid var(--border); margin-bottom: 20px; scrollbar-width: none; }
nav.tabs::-webkit-scrollbar { display: none; }
.tab-link { display: inline-block; padding: 8px 13px; font-size: 13px; color: var(--dim); white-space: nowrap; border-bottom: 2px solid transparent; transition: color .12s, border-color .12s; flex-shrink: 0; }
.tab-link:hover  { color: var(--text); text-decoration: none; }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }

/* tabs */
.tab-content        { display: none; }
.tab-content.active { display: block; }

/* card */
.card       { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 18px; margin-bottom: 10px; }
.card-title { font-size: 14px; font-weight: 600; color: var(--bright); margin-bottom: 2px; }
.card-desc  { font-size: 12px; color: var(--dim); margin-bottom: 14px; }

/* form */
label { display: block; font-size: 12px; color: var(--dim); margin-bottom: 4px; margin-top: 10px; }
input[type=text], input[type=number], select {
  width: 100%; padding: 9px 11px; border-radius: var(--r);
  border: 1px solid var(--muted); background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none; transition: border-color .12s;
}
input:focus, select:focus { border-color: var(--accent); }
input[type=checkbox] { width: auto; accent-color: var(--accent); cursor: pointer; }

/* buttons */
.btn { display: block; width: 100%; padding: 10px; margin-top: 12px; border: none; border-radius: var(--r); font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; transition: background .12s, opacity .12s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent2); }
.btn-primary:disabled { opacity: .35; cursor: not-allowed; }

/* api bar */
.api-bar { display: flex; align-items: center; gap: 8px; margin-top: 8px; padding: 7px 10px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); font-size: 12px; color: var(--dim); }
.api-bar .api-label { white-space: nowrap; flex-shrink: 0; }
.api-bar a { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--link); }
.copy-btn { flex-shrink: 0; padding: 2px 9px; font-size: 11px; font-weight: 600; font-family: inherit; border-radius: 4px; background: var(--surface); color: var(--dim); border: 1px solid var(--border); cursor: pointer; transition: background .12s, color .12s; }
.copy-btn:hover  { background: var(--muted); color: var(--bright); }
.copy-btn.copied { background: var(--ok-bg); color: var(--ok); border-color: var(--ok-bg); }

/* output */
pre { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); padding: 12px; overflow-x: auto; font-size: 12px; margin-top: 10px; max-height: 440px; line-height: 1.55; }
.text-loading { color: var(--accent); }
.text-err     { color: var(--err); }

/* home */
.geo-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 8px; margin-top: 12px; }
.geo-item { background: var(--bg); padding: 9px 11px; border-radius: 6px; font-size: 13px; }

/* categorized tool grid */
.tool-categories     { display: flex; flex-direction: column; gap: 18px; margin-top: 12px; }
.tool-category-label { font-size: 11px; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; padding-bottom: 5px; border-bottom: 1px solid var(--border); }
.tool-grid  { display: grid; grid-template-columns: repeat(auto-fill,minmax(190px,1fr)); gap: 8px; }
.tool-card  { display: block; padding: 13px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); color: var(--text); transition: border-color .12s; }
.tool-card:hover  { border-color: var(--accent); text-decoration: none; }
.tool-card strong { display: block; font-size: 13px; color: var(--bright); margin-bottom: 3px; }
.tool-card span   { font-size: 12px; color: var(--dim); line-height: 1.4; }

/* ipcalc */
.ct-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ct-result { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); padding: 12px; margin-top: 12px; }
.ct-result b { color: var(--bright); }
.ct-result .ct-grid div { font-size: 13px; line-height: 1.7; }

/* password lists — pw-list shared style; rp_list and pw_list are the distinct JS targets */
.pw-list { display: flex; flex-direction: column; gap: 5px; margin-top: 10px; }
.pw-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 13px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); cursor: pointer; transition: border-color .12s; }
.pw-item:hover  { border-color: var(--accent); }
.pw-item.copied { border-color: var(--ok-bg); }
.pw-text { font-size: 15px; word-break: break-all; line-height: 1.4; }
.pw-hint { font-size: 11px; color: var(--dim); white-space: nowrap; flex-shrink: 0; }
.pw-item:hover .pw-hint, .pw-item.copied .pw-hint { color: var(--ok); }

/* randpass param bar */
.pw-opts { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; margin-top: 10px; padding: 9px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r); font-size: 12px; }
.pw-opts .qs-pre { color: var(--dim); }
.param { display: inline-flex; align-items: center; }
.param-key, .param-eq, .param-sep { color: var(--dim); }
.param-sep { margin: 0 4px; }
.param-eq  { margin: 0 1px; }
.param-val { color: var(--accent); cursor: pointer; border-bottom: 1px dashed var(--muted); padding: 0 1px; }
.param-val:hover { color: var(--bright); }
.param-val input { background: transparent; border: none; border-bottom: 1px dashed var(--accent); color: var(--accent); font: inherit; font-size: 12px; width: 28px; text-align: center; outline: none; }

/* wordpass controls */
.wp-controls { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: 14px 18px; margin-top: 10px; }
.wp-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.wp-check { display: flex; gap: 7px; align-items: center; font-size: 13px; }
.wp-row:last-child { margin-bottom: 0; }

/* footer */
.site-footer   { margin-top: 28px; padding: 20px 0 16px; border-top: 1px solid var(--border); }
.footer-cats   { display: grid; grid-template-columns: repeat(auto-fill,minmax(140px,1fr)); gap: 16px 24px; margin-bottom: 16px; }
.footer-cat h4 { font-size: 11px; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.footer-cat a  { display: block; font-size: 12px; color: var(--text); padding: 2px 0; transition: color .12s; }
.footer-cat a:hover { color: var(--link); text-decoration: none; }
.footer-note   { font-size: 11px; color: var(--dim); text-align: center; padding-top: 12px; border-top: 1px solid var(--border); }

@media(max-width:600px) {
  .ct-grid, .wp-row, .geo-grid { grid-template-columns: 1fr; }
}