/* ============================================================================
   GEMASTIK UNAIR — Attack Defense Platform
   Shared design tokens + primitives.

   One stylesheet for tokens and the components every page uses, so index /
   team / login / submit / guide stop each carrying a near-identical copy of the
   same hex values. Page-specific rules stay in that page's own <style>; only
   what is genuinely shared lives here.

   Visual direction is "instrumentation", not "SaaS dashboard": hard 3px
   corners, hairline rules, reticle ticks on framed surfaces, uppercase
   micro-labels, and tabular numerals everywhere a number can change. Colour
   carries meaning only (health / attack / degraded), never decoration.
   ========================================================================= */

:root {
  /* surfaces — cool ink, near-black at the edges */
  --bg:            #070a10;
  --bg-grid:       #0d1420;
  --surface:       #0c121d;
  --surface-2:     #101825;
  --surface-3:     #16202f;
  --line:          #1c2637;
  --line-strong:   #2a3a52;

  /* ink */
  --ink:           #d7e2f0;
  --ink-strong:    #f2f7ff;
  --ink-dim:       #8496ad;
  --ink-faint:     #5a6a80;

  /* signal — semantic only */
  --sig:           #35e0d0;   /* brand / focus / active */
  --sig-soft:      #35e0d022;
  --ok:            #4ade80;
  --ok-soft:       #4ade8018;
  --warn:          #fbbf24;
  --warn-soft:     #fbbf2418;
  --hot:           #fb5f7d;   /* attack / destructive */
  --hot-soft:      #fb5f7d18;
  --cool:          #60a5fa;
  --cool-soft:     #60a5fa18;

  /* type */
  --mono: 'JetBrains Mono','Fira Code',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans: 'Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;
  --r:    3px;                 /* hard corners: this is an instrument, not a card */
  --r-lg: 5px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  background-color: var(--bg);
  /* hairline graph paper — the grid the topology and tables sit on */
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 32px 32px;
  min-height: 100vh;
  padding: 20px;
  -webkit-font-smoothing: antialiased;
}

/* Numbers that change must not reflow their neighbours. */
.num, td, th, .pill, input, button, select { font-variant-numeric: tabular-nums; }

::selection { background: var(--sig); color: #04070c; }

/* ---------- focus: visible, always, never removed ---------- */
:focus-visible {
  outline: 2px solid var(--sig);
  outline-offset: 2px;
  border-radius: var(--r);
}
:focus:not(:focus-visible) { outline: none; }

/* ---------- type helpers ---------- */
h1 { font-size: 15px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-strong); }
h2 { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--sig); }
a  { color: var(--cool); text-decoration-color: #60a5fa55; text-underline-offset: 3px; }
a:hover { color: var(--ink-strong); }
.dim   { color: var(--ink-dim); }
.faint { color: var(--ink-faint); }
.hot   { color: var(--hot); }
.ok    { color: var(--ok); }
.warn  { color: var(--warn); }
.tiny  { font-size: 11px; }
.micro {
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 600;
}
.nowrap { white-space: nowrap; }
.sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */
header.app {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; flex-wrap: wrap;
  padding-bottom: 14px; margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand svg { width: 22px; height: 22px; flex: none; }
.brand .sub {
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--ink-faint); margin-top: 2px;
}
.app-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- tabs ---------- */
.tabs {
  display: flex; gap: 2px; margin-bottom: 18px; flex-wrap: wrap;
  border-bottom: 1px solid var(--line); padding-bottom: 0;
}
.tab {
  position: relative;
  display: inline-flex; align-items: center; gap: 7px;
  background: transparent; border: 1px solid transparent; border-bottom: none;
  color: var(--ink-dim);
  padding: 9px 14px; margin-bottom: -1px;
  border-radius: var(--r) var(--r) 0 0;
  font-family: inherit; font-size: 12px; font-weight: 500;
  cursor: pointer; transition: color .15s, background .15s;
}
.tab:hover { color: var(--ink-strong); background: var(--surface-2); }
.tab.active { color: var(--sig); border-color: var(--line); background: var(--surface); }
.tab.active::after {
  content: ''; position: absolute; inset: auto 0 -1px 0; height: 1px; background: var(--surface);
}
.tab svg { width: 14px; height: 14px; opacity: .8; }
.tab.active svg { opacity: 1; }
.tab .count {
  font-size: 10px; padding: 1px 5px; border-radius: 999px;
  background: var(--surface-3); color: var(--ink-dim);
}

/* ---------- buttons ---------- */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--surface-2); border: 1px solid var(--line-strong); color: var(--ink);
  font-family: inherit; font-size: 12px; font-weight: 500;
  padding: 7px 12px; border-radius: var(--r); cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
  text-decoration: none; white-space: nowrap;
}
button:hover, .btn:hover { border-color: var(--sig); color: var(--ink-strong); background: var(--surface-3); }
button:active, .btn:active { transform: translateY(1px); }
button svg, .btn svg { width: 13px; height: 13px; flex: none; }
button.primary, .btn.primary {
  background: var(--sig-soft); border-color: var(--sig); color: var(--sig); font-weight: 600;
}
button.primary:hover, .btn.primary:hover { background: var(--sig); color: #04070c; }
button.danger, .btn.danger { color: var(--hot); border-color: #fb5f7d55; background: var(--hot-soft); }
button.danger:hover, .btn.danger:hover { background: var(--hot); color: #180408; border-color: var(--hot); }
button.ghost { background: transparent; border-color: transparent; color: var(--ink-dim); }
button.ghost:hover { color: var(--sig); background: var(--surface-2); }
button:disabled, .btn[aria-disabled=true] { opacity: .4; pointer-events: none; }
button.sm, .btn.sm { font-size: 11px; padding: 5px 9px; }
button.icon { padding: 6px; }

/* ---------- pills / status ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--ink-dim); font-size: 11px; padding: 4px 9px; border-radius: 999px;
  white-space: nowrap;
}
.pill.green { color: var(--ok);  border-color: #4ade8055; background: var(--ok-soft); }
.pill.red   { color: var(--hot); border-color: #fb5f7d55; background: var(--hot-soft); }
.pill.amber { color: var(--warn);border-color: #fbbf2455; background: var(--warn-soft); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.pill.green .dot { animation: beat 2.4s ease-in-out infinite; }
@keyframes beat { 0%,100% { opacity: 1; } 50% { opacity: .25; } }

.status { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.status.up   { color: var(--ok); }
.status.down { color: var(--hot); }
.status.unknown { color: var(--ink-faint); }

/* ---------- framed surface with reticle ticks ---------- */
.card {
  position: relative;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.card.dead { border-color: #fb5f7d44; background: color-mix(in srgb, #1a0c14 70%, transparent); }
/* corner ticks: the on-theme detail that stops these reading as generic cards */
.card::before, .card::after {
  content: ''; position: absolute; width: 7px; height: 7px; pointer-events: none;
  border-color: var(--line-strong); border-style: solid;
}
.card::before { top: -1px; left: -1px;  border-width: 1px 0 0 1px; }
.card::after  { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }
.card.dead::before, .card.dead::after { border-color: var(--hot); }

.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.tight { gap: 5px; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 6px; }

/* ---------- forms ---------- */
label.field, .lbl {
  display: block; font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 600; margin-bottom: 5px;
}
input[type=text], input[type=number], input[type=password], input:not([type]), textarea, select {
  width: 100%;
  background: #070b12; border: 1px solid var(--line); color: var(--ink-strong);
  border-radius: var(--r); padding: 9px 11px;
  font-family: inherit; font-size: 13px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus {
  border-color: var(--sig); box-shadow: 0 0 0 3px var(--sig-soft);
}
input::placeholder, textarea::placeholder { color: var(--ink-faint); }
input[type=checkbox] { accent-color: var(--sig); width: 14px; height: 14px; }
select { cursor: pointer; }

/* search box: the one control that makes a 28-challenge list usable */
.search { position: relative; flex: 1 1 220px; min-width: 180px; }
.search svg { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); width: 13px; height: 13px; color: var(--ink-faint); pointer-events: none; }
.search input { padding-left: 29px; }
.search kbd { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); }

kbd {
  font-family: inherit; font-size: 10px; color: var(--ink-faint);
  border: 1px solid var(--line-strong); border-bottom-width: 2px;
  border-radius: 3px; padding: 1px 5px; background: var(--surface-2);
}

/* ---------- data display ---------- */
.flag {
  background: #060910; border: 1px dashed var(--line-strong); border-radius: var(--r);
  padding: 9px 11px; font-size: 12px; color: var(--sig); word-break: break-all; min-height: 17px;
}
.code, .history-box {
  background: #060910; border: 1px solid var(--line); border-radius: var(--r);
  padding: 12px; font-size: 11px; color: var(--cool);
  max-height: 300px; overflow: auto; white-space: pre-wrap; word-break: break-word;
}
.kv { display: grid; grid-template-columns: minmax(90px, 130px) 1fr; gap: 5px 12px; font-size: 12px; }
.kv b { color: var(--ink-dim); font-weight: 600; }
.kv span { color: var(--ink-strong); word-break: break-all; }
.ch-name { font-size: 14px; font-weight: 700; color: var(--ink-strong); letter-spacing: .02em; }
.ch-cat {
  font-size: 9px; letter-spacing: .14em; text-transform: uppercase; padding: 2px 6px;
  border-radius: 2px; background: var(--surface-3); color: var(--ink-dim); font-weight: 600;
}

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th {
  text-align: left; font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 600; padding: 7px 9px;
  border-bottom: 1px solid var(--line-strong); white-space: nowrap;
}
td { padding: 7px 9px; border-bottom: 1px solid var(--line); color: var(--ink); }
tbody tr:hover { background: var(--surface-2); }
tbody tr:last-child td { border-bottom: none; }

/* ---------- views ---------- */
.view { display: none; }
.view.active { display: block; animation: fade .18s ease-out; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* ---------- modal ---------- */
.modal-back {
  position: fixed; inset: 0; background: #04070ce0; backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal-back.open { display: flex; }
.modal {
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--r-lg); padding: 22px; width: 460px; max-width: 100%;
  box-shadow: 0 24px 70px #000a;
}
.modal h2 { margin-bottom: 14px; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 20px; right: 20px; z-index: 80;
  background: var(--surface-2); border: 1px solid var(--sig); border-left-width: 3px;
  color: var(--ink-strong); padding: 11px 15px; border-radius: var(--r);
  font-size: 12px; max-width: min(420px, calc(100vw - 40px));
  opacity: 0; transform: translateY(8px); transition: opacity .2s, transform .2s;
  box-shadow: 0 12px 34px #000a;
}
.toast.show { opacity: 1; transform: none; }
.toast.err { border-color: var(--hot); color: #ffc2cd; }

/* ---------- blocking overlay ---------- */
#loadingOverlay {
  display: none; position: fixed; inset: 0; background: #04070cf0; z-index: 2000;
  align-items: center; justify-content: center; flex-direction: column; gap: 16px; padding: 24px;
}
#loadingOverlay.show { display: flex; }
.loader {
  width: 38px; height: 38px; border: 2px solid var(--line-strong);
  border-top-color: var(--sig); border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loadingText { color: var(--ink); font-size: 13px; text-align: center; line-height: 1.7; }

.spin {
  display: inline-block; width: 11px; height: 11px; border: 2px solid var(--line-strong);
  border-top-color: var(--sig); border-radius: 50%; animation: spin .7s linear infinite;
}

/* ---------- footer ---------- */
.footer-note { color: var(--ink-faint); font-size: 10px; margin-top: 22px; text-align: center; letter-spacing: .1em; }

/* ---------- scrollbars ---------- */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 999px; border: 2px solid var(--bg); }
*::-webkit-scrollbar-thumb:hover { background: var(--sig); }

/* ============================================================================
   Topology
   A <svg>, not a <canvas>: it reflows, its text is real text, and the attack
   pulse is a CSS keyframe instead of a JS render loop.
   ========================================================================= */

.topo-wrap {
  position: relative;
  background:
    radial-gradient(ellipse at 50% 0%, #0e1726 0%, transparent 70%),
    #070b12;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden;
}
.topo-svg { width: 100%; height: clamp(380px, 58vh, 640px); display: block; }
.topo-canvas { width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
.topo-canvas:active { cursor: grabbing; }

.topo-dot {
  fill: var(--surface);
  stroke: var(--line-strong);
  stroke-width: 1.5;
  transition: stroke .15s, fill .15s;
}
.topo-node-infra .topo-dot { fill: var(--surface-2); }
.topo-node-panel .topo-dot { fill: var(--sig-soft);  stroke: var(--sig); }
.topo-node-team  .topo-dot { fill: var(--surface-3); stroke: var(--cool); stroke-width: 2; }
.topo-node-challenge .topo-dot { fill: var(--surface); }

.topo-node { cursor: move; outline: none; }
.topo-node:hover .topo-dot,
.topo-node:focus-visible .topo-dot { stroke: var(--sig); stroke-width: 2.5; }
.topo-node:focus-visible .topo-focus { stroke: var(--sig); stroke-dasharray: 3 3; }
.topo-node:hover .topo-name { fill: var(--ink-strong); }

.topo-name {
  fill: var(--ink); font-family: var(--mono); font-size: 11px;
  text-anchor: middle; font-weight: 600; pointer-events: none;
}
.topo-node-panel .topo-name { fill: var(--sig); font-size: 10px; letter-spacing: .14em; }
.topo-node-team  .topo-name { fill: var(--ink-strong); font-size: 12px; }
.topo-node-infra .topo-name { fill: var(--ink-dim); font-size: 10px; }
.topo-sub {
  fill: var(--ink-faint); font-family: var(--mono); font-size: 10px;
  text-anchor: middle; pointer-events: none;
}
.topo-initial {
  fill: var(--ink-dim); font-family: var(--mono); font-size: 7px;
  font-weight: 700; pointer-events: none; user-select: none;
}
.topo-node-challenge:hover .topo-initial { fill: var(--sig); }

/* Full name + port only on hover/focus. Two-letter initials stay at rest
   because 64 permanent labels at this scale is an unreadable pile, but
   "ca" is ambiguous between carbeat / cdn, so the hover state has to exist. */
.topo-chall-name, .topo-chall-port {
  font-family: var(--mono); font-size: 9.5px; pointer-events: none;
  user-select: none; opacity: 0; transition: opacity .12s;
}
.topo-chall-name { fill: var(--ink-strong); font-weight: 600; }
.topo-chall-port { fill: var(--ink-faint); font-size: 8.5px; }
.topo-node-challenge:hover .topo-chall-name,
.topo-node-challenge:focus-visible .topo-chall-name,
.topo-node-challenge:hover .topo-chall-port,
.topo-node-challenge:focus-visible .topo-chall-port { opacity: 1; }

.topo-edge {
  fill: none; stroke: var(--line-strong); stroke-width: 1.2;
  opacity: .75; pointer-events: none;
}
.topo-edge-team { stroke: #2f4a6d; }

.topo-attack-line {
  fill: none; stroke: currentColor; stroke-width: 1.8;
  pointer-events: none; marker-end: url(#ad-arrow);
}
.topo-attack.ok   { color: var(--hot); }
.topo-attack.fail { color: var(--warn); }
.topo-attack-label {
  fill: currentColor; font-family: var(--mono); font-size: 9.5px;
  font-weight: 700; pointer-events: none; user-select: none;
}
.topo-attack.ok   .topo-attack-line { animation: ad-strike 1.1s ease-in-out infinite; }
.topo-attack.fail .topo-attack-line { animation: ad-strike 1.8s ease-in-out infinite; opacity: .6; }
@keyframes ad-strike { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

.topo-bar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.topo-legend { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 10px; }
.topo-legend span { display: inline-flex; align-items: center; gap: 5px; font-size: 10px; color: var(--ink-faint); }
.topo-legend i { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid; display: inline-block; }
.topo-legend .l-panel i  { border-color: var(--sig);  background: var(--sig-soft); }
.topo-legend .l-team i   { border-color: var(--cool); background: var(--surface-3); }
.topo-legend .l-chall i  { border-color: var(--line-strong); background: var(--surface); }
.topo-legend .l-atk i    { border-color: var(--hot); background: var(--hot-soft); border-radius: 2px; }
.topo-hint { font-size: 11px; color: var(--ink-faint); margin-top: 10px; line-height: 1.8; }
.topo-hint kbd { margin: 0 1px; }
.topo-empty {
  position: absolute; inset: 0; display: grid; place-content: center;
  color: var(--ink-faint); font-size: 12px; text-align: center; gap: 6px;
}

/* ---------- motion is decoration; drop it on request ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; scroll-behavior: auto !important;
  }
}

@media (max-width: 720px) {
  body { padding: 14px; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv b { margin-top: 6px; }
}