/* ── FiftyTools: curated utility hub ────────────────────────────
   Identity: cool gray canvas, indigo accent, numbered tool badges.
   Display face: Space Grotesk. Body: system stack. */

:root {
  --bg:      #F4F4F6;
  --surface: #FFFFFF;
  --ink:     #17171C;
  --muted:   #5E5E6B;
  --line:    #DCDCE2;
  --accent:  #4F46E5;   /* indigo */
  --accent-soft: #EEEDFC;
  --good:    #15803D;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

h1, h2, .brand, summary, .tool-num, .result-big {
  font-family: "Space Grotesk", system-ui, sans-serif;
}
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 700; margin: .2em 0 .4em; letter-spacing: -.01em; }
h2 { font-size: 1.35rem; font-weight: 700; margin-top: 2.2em; }

main { max-width: 820px; margin: 0 auto; padding: 1rem 1rem 3rem; }

/* header */
.site-head {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .8rem 1.2rem; background: var(--ink); color: #fff;
}
.brand { color: #fff; text-decoration: none; font-size: 1.25rem; font-weight: 700;
         display: flex; align-items: center; gap: .55rem; letter-spacing: -.01em; }
.brand-badge {
  background: var(--accent); color: #fff; font-size: .95rem; font-weight: 700;
  padding: .15rem .45rem; border-radius: 6px;
}
.live-count { font-size: .85rem; color: #B8B8C4; }

/* tool grid (homepage) */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .9rem; margin: 1.2rem 0; }
.tool-card {
  display: flex; gap: .8rem; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: .95rem 1rem; text-decoration: none; color: var(--ink);
  transition: border-color .12s ease, transform .12s ease;
}
.tool-card:hover, .tool-card:focus { border-color: var(--accent); transform: translateY(-1px); }
.tool-card.soon { opacity: .45; pointer-events: none; }
.tool-num {
  background: var(--accent-soft); color: var(--accent); font-weight: 700;
  border-radius: 8px; padding: .3rem .5rem; font-size: .95rem; flex-shrink: 0;
}
.tool-card strong { display: block; font-size: 1.02rem; }
.tool-card span { color: var(--muted); font-size: .88rem; }

/* the tool itself */
.tool {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.2rem; margin: 1rem 0 1.5rem;
}
.drop {
  border: 2px dashed var(--line); border-radius: 10px;
  padding: 2.2rem 1rem; text-align: center; color: var(--muted);
  cursor: pointer; transition: border-color .12s ease, background .12s ease;
}
.drop.drag, .drop:hover { border-color: var(--accent); background: var(--accent-soft); }
.drop strong { color: var(--accent); }
.drop input { display: none; }

.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .9rem; margin-top: 1rem; }
.controls label { display: block; font-size: .78rem; font-weight: 600; text-transform: uppercase;
                  letter-spacing: .05em; color: var(--muted); margin-bottom: .25rem; }
.controls input, .controls select {
  width: 100%; padding: .55rem .6rem; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink);
}
.controls input:focus, .controls select:focus { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
input[type="range"] { padding: 0; accent-color: var(--accent); }

.result-panel {
  margin-top: 1.1rem; background: var(--accent-soft);
  border: 1px solid var(--accent); border-radius: 10px;
  padding: 1rem 1.1rem; display: none;
}
.result-panel.show { display: block; }
.result-big { font-size: 1.6rem; font-weight: 700; }
.result-big .good { color: var(--good); }
.result-sub { color: var(--muted); margin: .25rem 0 .8rem; font-size: .93rem; }
.preview { max-width: 100%; max-height: 280px; border-radius: 8px; border: 1px solid var(--line); display: block; margin-top: .6rem; }

.btn {
  display: inline-block; background: var(--accent); color: #fff; font-weight: 600;
  padding: .65rem 1.3rem; border-radius: 8px; border: 0; cursor: pointer;
  font-size: 1rem; text-decoration: none;
}
.btn:hover, .btn:focus { background: #4338CA; }
.btn[disabled] { opacity: .5; cursor: default; }

.privacy-note {
  display: flex; gap: .5rem; align-items: center; margin-top: .9rem;
  font-size: .85rem; color: var(--muted);
}
.privacy-note::before { content: "🔒"; }

.status { color: var(--muted); font-size: .9rem; margin-top: .6rem; }

/* content */
table { border-collapse: collapse; width: 100%; margin: 1rem 0; background: var(--surface); border-radius: 10px; overflow: hidden; }
th, td { border: 1px solid var(--line); padding: .55rem .7rem; text-align: left; font-size: .95rem; }
th { background: var(--ink); color: #fff; font-weight: 600; }

.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; margin: .5rem 0; }
.faq summary { cursor: pointer; padding: .7rem .9rem; font-size: 1.05rem; font-weight: 600; }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq p { padding: 0 .9rem; }

.site-foot { border-top: 1px solid var(--line); margin-top: 2rem; padding: 1.2rem 1rem; font-size: .88rem; color: var(--muted); }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: .5rem; }
.site-foot a { color: var(--muted); }

a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* package 2 additions */
.file-list { list-style: none; padding: 0; margin: .8rem 0 0; }
.file-list li { background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
                padding: .45rem .7rem; margin: .3rem 0; font-size: .92rem; }
.link-btn { background: none; border: 0; color: var(--accent); cursor: pointer; font-size: .85rem; text-decoration: underline; }
textarea.bigtext { width: 100%; min-height: 220px; padding: .8rem; font: 1rem/1.5 system-ui, sans-serif;
                   border: 1px solid var(--line); border-radius: 10px; resize: vertical; }
textarea.bigtext:focus { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: .7rem; margin-top: 1rem; }
.stat { background: var(--accent-soft); border-radius: 10px; padding: .7rem .8rem; }
.stat b { display: block; font-size: 1.4rem; font-family: "Space Grotesk", sans-serif; }
.stat span { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.pass-box { font: 1.25rem/1.4 ui-monospace, Consolas, monospace; background: var(--bg);
            border: 1px solid var(--line); border-radius: 10px; padding: .9rem 1rem;
            word-break: break-all; margin-top: .5rem; }
.checks { display: flex; flex-wrap: wrap; gap: 1rem; }
.checks label { display: flex; align-items: center; gap: .4rem; font-size: .95rem; text-transform: none; letter-spacing: 0; color: var(--ink); font-weight: 500; }
.btn-row { display: flex; gap: .7rem; margin-top: .9rem; }
.btn.secondary { background: var(--ink); }

/* package 3 additions */
textarea.mono { font: .92rem/1.5 ui-monospace, Consolas, monospace; }
.two-col { display: grid; grid-template-columns: 1fr; gap: .8rem; }
@media (min-width: 700px) { .two-col { grid-template-columns: 1fr 1fr; } }
.qr-holder { display: flex; justify-content: center; padding: .5rem; }
.qr-holder canvas { max-width: 280px; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; }
.case-btns { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .8rem; }
.case-btns .btn { padding: .45rem .8rem; font-size: .9rem; }

/* package 4: warm line + cluster badge tints */
.warm { font-size: 1.15rem; color: var(--ink); margin-top: 0; }
.tool-num.c-img  { background: #EEEDFC; color: #4F46E5; }
.tool-num.c-pdf  { background: #E6F7F5; color: #0D9488; }
.tool-num.c-text { background: #FDF3E3; color: #D97706; }
.tool-num.c-dev  { background: #FCEDF4; color: #DB2777; }
.tool-num.c-calc { background: #E9F6EC; color: #15803D; }
.ts-now { font: 1.1rem ui-monospace, Consolas, monospace; background: var(--accent-soft);
          border-radius: 8px; padding: .5rem .8rem; display: inline-block; }
.uuid-list { list-style: none; padding: 0; }
.uuid-list li { font: 1rem ui-monospace, Consolas, monospace; background: var(--bg);
                border: 1px solid var(--line); border-radius: 8px; padding: .5rem .7rem; margin: .3rem 0; }
.pct-row { display: grid; grid-template-columns: 1fr auto; gap: .8rem; align-items: center;
           background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
           padding: .8rem 1rem; margin: .6rem 0; }
.pct-row .q { font-size: .98rem; }
.pct-row input { width: 90px; padding: .4rem .5rem; border: 1px solid var(--line); border-radius: 6px; font-size: 1rem; }
.pct-ans { font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.3rem; color: var(--accent); min-width: 90px; text-align: right; }

/* package 5 additions */
.diff-out { font: .88rem/1.5 ui-monospace, Consolas, monospace; background: var(--bg);
            border: 1px solid var(--line); border-radius: 10px; padding: .6rem .4rem;
            margin-top: 1rem; max-height: 420px; overflow: auto; white-space: pre-wrap; word-break: break-word; }
.diff-line { padding: 0 .5rem; }
.diff-line.add { background: #E9F6EC; color: #15803D; }
.diff-line.del { background: #FDEBEC; color: #B91C1C; }
.swatch { width: 100%; height: 64px; border-radius: 10px; border: 1px solid var(--line); margin-bottom: .6rem; }
.color-rows div { display: flex; justify-content: space-between; align-items: center;
                  padding: .35rem 0; font: 1.05rem ui-monospace, Consolas, monospace; }
.tip-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .8rem; margin-top: 1rem; }
.tip-grid .stat b { font-size: 1.5rem; }
canvas.img-preview { max-width: 100%; max-height: 320px; border: 1px solid var(--line);
                     border-radius: 10px; display: block; margin: .8rem auto 0; }

/* package 6 additions */
mark { background: #FDE68A; padding: 0 .1em; border-radius: 3px; }
.regex-out { font: .9rem/1.6 ui-monospace, Consolas, monospace; background: var(--bg); border: 1px solid var(--line);
             border-radius: 10px; padding: .7rem .9rem; margin-top: .8rem; white-space: pre-wrap; word-break: break-word; max-height: 300px; overflow: auto; }
.match-list { font-size: .9rem; max-height: 200px; overflow: auto; }
.grad-prev { height: 140px; border-radius: 10px; border: 1px solid var(--line); margin-top: 1rem; }
.dl-link { display: block; padding: .4rem 0; font-weight: 600; }
[data-previews] canvas { border: 1px solid var(--line); border-radius: 6px; margin-right: .6rem; image-rendering: pixelated; background: #fff; }
canvas.pick-canvas { max-width: 100%; cursor: crosshair; border: 1px solid var(--line); border-radius: 10px; display: block; margin-top: .8rem; }
canvas.sig-canvas { width: 100%; max-width: 600px; height: 220px; border: 2px dashed var(--line); border-radius: 10px;
                    background: repeating-linear-gradient(0deg, transparent, transparent 54px, #EDEDF2 54px, #EDEDF2 55px); touch-action: none; display: block; }
.clock { font-family: "Space Grotesk", ui-monospace, monospace; font-size: 2.4rem; font-weight: 700; letter-spacing: .02em; }
.coin-big { font-size: 1.8rem; font-family: "Space Grotesk", sans-serif; font-weight: 700; min-height: 2.4rem; }
.hist-list { list-style: none; padding: 0; color: var(--muted); font-size: .9rem; }
.hist-list li { padding: .2rem 0; border-bottom: 1px dashed var(--line); }