/* QRAC dApp styles. Identity "hash core": ink, bone, steel, ember.
   Dark only: the brand is dark and the dApp has a single theme. */
:root {
  color-scheme: dark;

  /* Brand */
  --ink: #0a0b0d;
  --bone: #ece7dd;
  --steel: #7d848e;
  --ember: #ff4f1f;
  --ember-hover: #ff6a3d;

  /* Surfaces (warm-neutral steps above ink) */
  --bg: var(--ink);
  --panel: #111317;
  --raised: #16191e;
  --field: #0d0e11;
  --border: #23272e;
  --border-strong: #353a43;

  /* Text */
  --text: var(--bone);
  --muted: #9aa0a8;
  --faint: var(--steel);

  /* Accent */
  --accent: var(--ember);
  --accent-text: var(--ink);

  /* Status (tuned to the palette, used only for state) */
  --ok: #5cc98f;
  --ok-bg: rgba(92, 201, 143, 0.1);
  --bad: #ff6b5e;
  --bad-bg: rgba(255, 107, 94, 0.1);
  --warn: #f2b84b;
  --warn-bg: rgba(242, 184, 75, 0.1);

  --sans: "Helvetica Neue", Helvetica, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --ease: 180ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px 48px; }
.wrap > h1:first-child { margin-top: 36px; }

h1 { font-size: 1.75rem; font-weight: 500; letter-spacing: -0.02em; margin: 0 0 6px; }
h2 { font-size: 1.15rem; font-weight: 500; letter-spacing: -0.01em; margin: 0 0 14px; }
h3 {
  font: 500 0.72rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--faint); margin: 22px 0 10px;
}

p { max-width: 68ch; text-wrap: pretty; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ember-hover); }
code, .mono { font-family: var(--mono); font-size: 0.85em; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

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

/* Header */
header.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 18px 0; margin-bottom: 18px;
  background: rgba(10, 11, 13, 0.88); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; gap: 14px; align-items: center; text-decoration: none; color: inherit; }
.brand img { display: block; height: 28px; width: auto; }
.brand .tagline { font: 0.78rem var(--mono); color: var(--faint); letter-spacing: 0.02em; }
@media (max-width: 600px) { .brand .tagline { display: none; } }
header.top .row { margin: 0; }
header.top a.small { color: var(--muted); text-decoration: none; white-space: nowrap; }
header.top a.small:hover { color: var(--text); }

/* Developer-mode notice */
.banner {
  display: flex; gap: 10px; align-items: baseline;
  border-left: 2px solid var(--accent); border-radius: 0;
  background: var(--panel); color: var(--muted);
  padding: 10px 14px; margin-bottom: 20px; font-size: 0.88rem;
}
.banner b { color: var(--text); font-weight: 500; white-space: nowrap; }

/* Step tabs */
nav.tabs {
  display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 20px;
  padding: 4px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--r-md);
}
nav.tabs button {
  flex: 1 1 auto; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; color: var(--muted); border: 1px solid transparent; border-radius: var(--r-sm);
  padding: 8px 12px;
}
nav.tabs button:hover:not(.active) { background: var(--raised); color: var(--text); }
nav.tabs button.active { background: var(--raised); color: var(--text); border-color: var(--border-strong); }
nav.tabs .step {
  display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 5px;
  font: 500 0.72rem var(--mono); background: var(--border); color: var(--muted);
  pointer-events: none; /* app.js reads e.target.dataset.tab: clicks must land on the button */
}
nav.tabs button.active .step { background: var(--accent); color: var(--accent-text); }

/* Panels */
section.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 22px 24px 24px; margin-bottom: 16px;
}
section.panel > p:first-of-type { margin-top: 0; }
.hidden { display: none !important; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; }
.grid .full { grid-column: 1 / -1; }

.kv {
  display: grid; grid-template-columns: 190px 1fr; gap: 0 16px; align-items: baseline; margin: 12px 0;
}
.kv dt, .kv dd { padding: 8px 0; border-bottom: 1px solid var(--border); }
.kv dt { color: var(--muted); font-size: 0.88rem; }
.kv dd { margin: 0; font-variant-numeric: tabular-nums; }
.kv:empty { display: none; }
@media (max-width: 600px) {
  .kv { grid-template-columns: 1fr; }
  .kv dt { border-bottom: 0; padding-bottom: 0; }
}

.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0 0; }
.grow { flex: 1 1 260px; min-width: 0; }

/* Forms */
label { display: block; font-size: 0.82rem; color: var(--muted); margin: 10px 0 6px; }
label:has(> input[type="checkbox"]) {
  display: flex; gap: 10px; align-items: center; color: var(--text); font-size: 0.9rem; cursor: pointer;
}
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: var(--r-sm); border: 1px solid var(--border);
  background: var(--field); color: var(--text); font: inherit;
  transition: border-color var(--ease), box-shadow var(--ease);
}
input::placeholder, textarea::placeholder { color: #5a6068; }
input:hover, select:hover, textarea:hover { border-color: var(--border-strong); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.18);
}
input:disabled, textarea[readonly] { color: var(--muted); }
input:disabled { opacity: 0.6; }
input[id$="Addr"], input[placeholder^="0x"], #cData { font-family: var(--mono); font-size: 0.88rem; }
textarea { font-family: var(--mono); font-size: 0.85rem; min-height: 76px; resize: vertical; }
input[type="checkbox"] { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }
select {
  appearance: none; padding-right: 34px; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat;
}

/* Buttons */
button, .file-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--r-sm); border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-text); font: 500 0.92rem var(--sans); cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease), transform var(--ease);
}
button:hover:not(:disabled) { background: var(--ember-hover); border-color: var(--ember-hover); }
button:active:not(:disabled) { transform: translateY(1px); }
button.secondary, .file-btn { background: transparent; color: var(--text); border-color: var(--border-strong); }
button.secondary:hover:not(:disabled), .file-btn:hover { background: var(--raised); border-color: var(--steel); color: var(--text); }
button.danger { background: transparent; color: var(--bad); border-color: rgba(255, 107, 94, 0.5); }
button.danger:hover:not(:disabled) { background: var(--bad-bg); border-color: var(--bad); }
button:disabled { opacity: 0.4; cursor: not-allowed; }
.file-btn { margin: 0; }

/* Seed words */
.words {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px; margin: 14px 0;
  counter-reset: none;
}
.words span {
  font-family: var(--mono); font-size: 0.92rem; background: var(--field); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 7px 10px;
}
.words span i { color: var(--faint); font-style: normal; margin-right: 8px; font-variant-numeric: tabular-nums; }

/* Progress (key tree generation, rotation) */
.progress { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 14px; }
#treeStatus { margin: 10px 0 0; }
.progress > div { height: 100%; width: 0; background: var(--accent); transition: width 0.1s; }

/* Status pills */
.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 5px;
  font: 0.8rem var(--mono); border: 1px solid var(--border); color: var(--muted); background: var(--panel);
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.9; }
.pill.ok { background: var(--ok-bg); color: var(--ok); border-color: rgba(92, 201, 143, 0.35); }
.pill.bad { background: var(--bad-bg); color: var(--bad); border-color: rgba(255, 107, 94, 0.35); }
.pill.warn { background: var(--warn-bg); color: var(--warn); border-color: rgba(242, 184, 75, 0.35); }
.file-btn .pill, label .pill { cursor: pointer; }

/* Batch calls */
.call {
  border: 1px solid var(--border); background: var(--field); border-radius: var(--r-md);
  padding: 12px 14px; margin: 8px 0;
  display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: start;
}
.call .row { margin: 0; }
.call button { padding: 5px 10px; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th {
  text-align: left; padding: 8px 10px; font: 500 0.72rem var(--mono); text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--faint); border-bottom: 1px solid var(--border-strong);
}
td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; font-variant-numeric: tabular-nums; }
tbody tr:hover td { background: rgba(255, 255, 255, 0.015); }
.table-wrap { overflow-x: auto; }
#activityTable td:nth-child(-n+3), #activityTable td:last-child { white-space: nowrap; }
#activityTable td:last-child .mono, #activityTable td:last-child code { overflow-wrap: normal; }
table.results tr.ok td:nth-child(2) { color: var(--ok); font-weight: 500; }
table.results tr.bad td:nth-child(2) { color: var(--bad); font-weight: 500; }

/* Log */
#log {
  font-family: var(--mono); font-size: 0.8rem; line-height: 1.6; max-height: 200px; overflow: auto;
  background: var(--field); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 10px 12px; white-space: pre-wrap; color: var(--muted);
}

/* Danger zone */
section.panel.danger-zone { border-color: rgba(255, 107, 94, 0.25); }
section.panel.danger-zone h2 { color: var(--bad); }

@media (max-width: 600px) {
  .wrap { padding: 0 14px 40px; }
  header.top { position: static; padding: 14px 0; gap: 10px; }
  header.top .row { width: 100%; justify-content: space-between; }
  .banner { display: block; }
  .banner b { display: block; margin-bottom: 2px; }
  nav.tabs { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  nav.tabs::-webkit-scrollbar { display: none; }
  nav.tabs button { flex: 0 0 auto; }
  section.panel { padding: 18px 16px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}