/* tools/css/main.css — shared shell for CyberSec Academy interactive tools.
   Matches the academy palette: obsidian / stone / jade / gold / bone. */

:root {
  --obsidian: #0a0c0b;
  --stone: #14181a;
  --stone-light: #1d2224;
  --jade: #3fb98c;
  --jade-dim: #2a8c66;
  --gold: #c8a24b;
  --gold-dim: #8f7333;
  --bone: #e8e3d6;
  --muted: #8b8a82;
  --blood: #9c4a3c;
  --border: #2a2f2c;
  --display: 'Cinzel', 'Trajan Pro', Georgia, serif;
  --body: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 10px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--obsidian);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(63, 185, 140, 0.07), transparent),
    radial-gradient(ellipse 60% 40% at 90% 110%, rgba(200, 162, 75, 0.05), transparent);
  color: var(--bone);
  font-family: var(--body);
  line-height: 1.65;
  min-height: 100vh;
}

/* ---------- top nav ---------- */
.tool-nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 20px;
  background: rgba(10, 12, 11, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.tool-nav .brand {
  font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.06em;
  color: var(--bone); text-decoration: none; white-space: nowrap;
}
.tool-nav .brand b { color: var(--jade); }
.tool-nav .tool-crumb {
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.tool-nav .progress-chip {
  font-family: var(--mono); font-size: 0.72rem; color: var(--gold);
  border: 1px solid var(--gold-dim); border-radius: 999px;
  padding: 3px 10px; white-space: nowrap;
}

/* ---------- layout ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 26px 18px 70px; }

.tool-hero { margin: 8px 0 26px; }
.tool-hero .kicker {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--jade);
}
.tool-hero h1 {
  font-family: var(--display); font-weight: 700; font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  line-height: 1.15; margin-top: 6px; color: var(--bone);
}
.tool-hero h1 em { font-style: normal; color: var(--gold); }
.tool-hero p.lede { color: var(--muted); max-width: 68ch; margin-top: 10px; font-size: 0.98rem; }

.card {
  background: var(--stone);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
}
.card > .card-label {
  display: block; font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 12px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---------- forms & buttons ---------- */
label.field { display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }

input[type="text"], input[type="number"], select {
  width: 100%; background: var(--stone-light); color: var(--bone);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-family: var(--mono); font-size: 0.95rem;
  outline: none; transition: border-color 0.15s ease;
}
input[type="text"]:focus, input[type="number"]:focus, select:focus { border-color: var(--jade-dim); }
input.invalid { border-color: var(--blood); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--body); font-weight: 600; font-size: 0.9rem;
  color: var(--bone); background: var(--stone-light);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 18px; cursor: pointer; text-decoration: none;
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--jade-dim); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:focus-visible { outline: 2px solid var(--jade); outline-offset: 2px; }
.btn-jade { background: var(--jade-dim); border-color: var(--jade-dim); color: #06110c; }
.btn-jade:hover { background: var(--jade); border-color: var(--jade); }
.btn-gold { background: transparent; border-color: var(--gold-dim); color: var(--gold); }
.btn-gold:hover { border-color: var(--gold); }
.btn-danger { background: transparent; border-color: var(--blood); color: #d98a7d; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* ---------- tabs ---------- */
.tabbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.tabbar .tab {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em;
  color: var(--muted); background: transparent; border: 1px solid var(--border);
  border-radius: 999px; padding: 7px 16px; cursor: pointer;
  transition: all 0.15s ease;
}
.tabbar .tab:hover { color: var(--bone); border-color: var(--jade-dim); }
.tabbar .tab.active { color: #06110c; background: var(--jade); border-color: var(--jade); font-weight: 700; }
.tab-panel[hidden] { display: none; }

/* ---------- data display ---------- */
.kv-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.kv {
  background: var(--stone-light); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px;
}
.kv .k { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.kv .v { font-family: var(--mono); font-size: 0.95rem; color: var(--bone); margin-top: 3px; word-break: break-all; }
.kv .v.jade { color: var(--jade); }
.kv .v.gold { color: var(--gold); }

table.data {
  width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 0.82rem;
}
table.data th {
  text-align: left; font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--border);
}
table.data td { padding: 8px 10px; border-bottom: 1px solid rgba(42, 47, 44, 0.5); }
table.data tr:last-child td { border-bottom: none; }
.table-scroll { overflow-x: auto; }

.msg {
  border-radius: 8px; padding: 10px 14px; font-size: 0.88rem; margin-top: 12px;
  border: 1px solid var(--border); background: var(--stone-light); color: var(--muted);
}
.msg.ok { border-color: var(--jade-dim); color: var(--jade); background: rgba(63, 185, 140, 0.07); }
.msg.err { border-color: var(--blood); color: #d98a7d; background: rgba(156, 74, 60, 0.08); }
.msg.info { border-color: var(--gold-dim); color: var(--gold); background: rgba(200, 162, 75, 0.06); }
.msg[hidden] { display: none; }

/* ---------- footer ---------- */
.tool-footer {
  border-top: 1px solid var(--border); margin-top: 30px; padding: 20px;
  text-align: center; font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
}
.tool-footer a { color: var(--jade); text-decoration: none; }
.tool-footer a:hover { text-decoration: underline; }

/* ---------- shared toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: var(--stone-light); color: var(--bone); border: 1px solid var(--jade-dim);
  border-radius: 8px; padding: 10px 18px; font-size: 0.85rem;
  opacity: 0; pointer-events: none; transition: all 0.25s ease; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 640px) {
  .tool-nav { padding: 10px 14px; }
  .wrap { padding: 18px 14px 60px; }
  .card { padding: 16px; }
}