/* Shared look for the tools in public/apps/. Each tool links this file and kit.js.
   Themes: kit.js copies the site's theme (blueprint = dark, whiteprint = light) onto
   <html data-theme>. Opened on its own, a tool follows the OS setting. */

@font-face { font-family: 'Plex Sans'; src: url('fonts/plex-sans-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex Sans'; src: url('fonts/plex-sans-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Plex Sans'; src: url('fonts/plex-sans-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Plex Mono'; src: url('fonts/plex-mono-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex Mono'; src: url('fonts/plex-mono-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Barlow Condensed'; src: url('fonts/barlow-condensed-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }

:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-2: #efede6;
  --text: #13254a;
  --text-soft: #46597f;
  --text-faint: #7686a6;
  --accent: #1f4fa0;
  --accent-text: #ffffff;
  --border: rgba(18, 48, 107, 0.2);
  --border-strong: rgba(18, 48, 107, 0.45);
  --focus: rgba(31, 79, 160, 0.35);
  --good: #1d7a4a;
  --warn: #a5650b;
  --bad: #bd3b23;
  --checker: #e4e2da;

  --font: 'Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --radius: 4px;
  color-scheme: light;
}

:root[data-theme='dark'] {
  --bg: #0d2a57;
  --surface: #133a75;
  --surface-2: #0f3166;
  --text: #f2f6ff;
  --text-soft: #c6d5f1;
  --text-faint: #93acd8;
  --accent: #f2f6ff;
  --accent-text: #0d2a57;
  --border: rgba(222, 234, 255, 0.24);
  --border-strong: rgba(222, 234, 255, 0.55);
  --focus: rgba(255, 227, 154, 0.5);
  --good: #8fe0b0;
  --warn: #ffd27a;
  --bad: #ffa08c;
  --checker: #1a4383;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0d2a57;
    --surface: #133a75;
    --surface-2: #0f3166;
    --text: #f2f6ff;
    --text-soft: #c6d5f1;
    --text-faint: #93acd8;
    --accent: #f2f6ff;
    --accent-text: #0d2a57;
    --border: rgba(222, 234, 255, 0.24);
    --border-strong: rgba(222, 234, 255, 0.55);
    --focus: rgba(255, 227, 154, 0.5);
    --good: #8fe0b0;
    --warn: #ffd27a;
    --bad: #ffa08c;
    --checker: #1a4383;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--focus); }
a { color: inherit; }
[hidden] { display: none !important; }

/* ---------- Layout ---------- */
.app { max-width: 980px; margin: 0 auto; padding: 18px 16px 28px; }
.stack { display: grid; gap: 14px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.row.end { justify-content: flex-end; }
.row.between { justify-content: space-between; }
.grow { flex: 1 1 auto; min-width: 0; }
.cols { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.split { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .split { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); align-items: start; } }

/* ---------- Header ---------- */
.head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; margin-bottom: 14px; }
.head h1 { margin: 0; font: 600 1.7rem/1.1 var(--display); letter-spacing: 0.01em; }
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font: 500 0.7rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-soft);
}
.badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
.badge.net::before { background: var(--warn); }

/* ---------- Surfaces ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.card > h2, .h2 { margin: 0 0 10px; font: 500 0.72rem/1.2 var(--mono); letter-spacing: 0.09em; text-transform: uppercase; color: var(--text-soft); }
.muted { color: var(--text-soft); }
.faint { color: var(--text-faint); }
.small { font-size: 0.85rem; }
.mono { font-family: var(--mono); }
.note { font-size: 0.84rem; color: var(--text-soft); margin: 0; }
.error { color: var(--bad); font-size: 0.88rem; margin: 0; }
.ok { color: var(--good); }
hr { border: 0; border-top: 1px dashed var(--border); margin: 4px 0; }

/* ---------- Tabs (segmented) ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 1px; background: var(--border-strong); border: 1px solid var(--border-strong); border-radius: var(--radius); overflow: hidden; width: fit-content; max-width: 100%; }
.tabs button {
  appearance: none; flex: 1 0 auto; border: 0; background: var(--bg); color: var(--text-soft);
  font: 500 0.8rem/1 var(--mono); letter-spacing: 0.05em; text-transform: uppercase;
  padding: 10px 14px; cursor: pointer;
}
.tabs button:hover { color: var(--text); background: var(--surface-2); }
.tabs button[aria-selected='true'] { background: var(--accent); color: var(--accent-text); }

/* ---------- Form controls ---------- */
/* Wrap a label's text in <span> when it has inline parts, e.g. <label><span>Size: <b id="o">4</b> px</span><input ...></label> */
label, .label { display: grid; gap: 5px; font-size: 0.82rem; font-weight: 500; color: var(--text-soft); }
input[type='text'], input[type='url'], input[type='number'], input[type='password'], input[type='email'], input[type='tel'],
input[type='search'], input[type='datetime-local'], input[type='date'], input[type='time'], select, textarea {
  width: 100%; min-width: 0;
  font: 400 0.95rem/1.4 var(--font); color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 9px 11px;
}
textarea { font-family: var(--mono); font-size: 0.88rem; resize: vertical; min-height: 120px; line-height: 1.5; }
select { cursor: pointer; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, .drop:focus-visible {
  outline: 2px solid var(--focus); outline-offset: 1px; border-color: var(--accent);
}
input[type='color'] { width: 44px; height: 38px; padding: 2px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); cursor: pointer; }
input[type='range'] { width: 100%; accent-color: var(--accent); }
input[type='checkbox'], input[type='radio'] { accent-color: var(--accent); width: 16px; height: 16px; margin: 0; }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 400; color: var(--text); cursor: pointer; }
.inline { display: flex; align-items: center; gap: 8px; }
.inline > input:not([type='checkbox']):not([type='color']), .inline > select { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
  appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font: 500 0.8rem/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none;
  padding: 11px 15px; border-radius: var(--radius); cursor: pointer;
  background: transparent; color: var(--text); border: 1px solid var(--border-strong);
}
.btn:hover { border-color: var(--text); background: var(--surface-2); }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 7px 10px; font-size: 0.72rem; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.done { border-color: var(--good); color: var(--good); }

/* ---------- File drop zone ---------- */
.drop {
  display: grid; place-items: center; gap: 6px; text-align: center;
  padding: 28px 16px; border: 1.5px dashed var(--border-strong); border-radius: var(--radius);
  background: var(--surface); color: var(--text-soft); cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop strong { color: var(--text); font-weight: 500; }
.drop.over { border-color: var(--accent); background: var(--surface-2); }

/* ---------- Output ---------- */
.out {
  font-family: var(--mono); font-size: 0.88rem; line-height: 1.5;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 12px; overflow-wrap: anywhere; white-space: pre-wrap;
}
.stats { display: grid; gap: 1px; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--surface); padding: 10px 12px; }
.stat b { display: block; font: 600 1.5rem/1.1 var(--display); color: var(--text); }
.stat span { font: 500 0.68rem/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-faint); }
.checker {
  background-color: var(--surface);
  background-image: linear-gradient(45deg, var(--checker) 25%, transparent 25%), linear-gradient(-45deg, var(--checker) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--checker) 75%), linear-gradient(-45deg, transparent 75%, var(--checker) 75%);
  background-size: 16px 16px; background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}
table.list { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.list th, table.list td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.list th { font: 500 0.7rem/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-faint); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 18px; transform: translate(-50%, 20px); opacity: 0;
  background: var(--text); color: var(--bg); font: 500 0.82rem/1.3 var(--mono);
  padding: 9px 14px; border-radius: var(--radius); pointer-events: none;
  transition: opacity 0.18s, transform 0.18s; z-index: 10; max-width: calc(100% - 32px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Footer ---------- */
.foot { margin-top: 18px; font-size: 0.78rem; color: var(--text-faint); }
.foot a { color: var(--text-soft); }

@media (max-width: 480px) {
  .app { padding: 14px 12px 22px; }
  .card { padding: 13px; }
  .tabs button { padding: 9px 10px; font-size: 0.72rem; }
}