/*
 * HAL — canonical stylesheet (the designer's reference).
 *
 * This file is the load-bearing visual specification for the index
 * page. R-8MP8-6B77 pins that the build agent embeds and serves this
 * file directly rather than re-deriving colors, hover rules,
 * animation timings, or class structure from prose. See
 * reqs/design.md for the structural walkthrough of the components
 * these classes style.
 */

:root {
  --bg:        #f6f5f1;
  --bg-elev:   #fbfaf6;
  --ink:       #14130f;
  --ink-soft:  #4a4842;
  --ink-mute:  #8a877e;
  --line:      #e3e0d6;
  --line-soft: #ecebe3;
  --accent:    #d4361e;        /* HAL-lens red */
  --accent-glow: 212, 54, 30;
  --ok:        oklch(60% 0.12 145);
  --code-bg:   #14130f;
  --code-ink:  #f3f1ea;
  --code-mute: #8c8a82;
  --radius:    10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}
.mono { font-family: 'JetBrains Mono', ui-monospace, Menlo, monospace; }

/* page frame */
.page {
  max-width: 880px;
  margin: 0 auto;
  padding: 12px 32px 96px;
}

/* top bar (sign in / out) */
.topbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 14px;
  height: 36px;
  margin-bottom: 24px;
}
.who {
  font-size: 13px;
  color: var(--ink-mute);
  display: flex;
  align-items: center;
  gap: 8px;
}
.who[hidden] { display: none; }
.who .avatar {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2a2823, #14130f);
  color: #f6f5f1;
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.auth-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--ink);
  font: 500 13px/1 'Inter', sans-serif;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.auth-btn:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
}

/* banner */
.banner {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 56px 40px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.banner-auth {
  position: absolute;
  right: 24px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.lens {
  position: absolute;
  top: 22px;
  left: 24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ff7a5a 0%, var(--accent) 45%, #6a0e00 100%);
  box-shadow:
    0 0 0 3px rgba(var(--accent-glow), 0.08),
    0 0 18px rgba(var(--accent-glow), 0.45);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(var(--accent-glow), 0.08), 0 0 14px rgba(var(--accent-glow), 0.35); }
  50%      { box-shadow: 0 0 0 4px rgba(var(--accent-glow), 0.12), 0 0 24px rgba(var(--accent-glow), 0.65); }
}
.tag {
  position: absolute;
  top: 22px;
  right: 24px;
  font: 500 11px/1 'JetBrains Mono', monospace;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.title {
  font-size: 88px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0;
}
.subtitle-row {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 18px;
}
.subtitle {
  font-style: italic;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.subtitle.swap { opacity: 0; transform: translateY(-3px); }
.refresh {
  appearance: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  width: 28px; height: 28px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}
.refresh:hover {
  color: var(--ink);
  border-color: var(--ink);
  transform: rotate(90deg);
}
.refresh:active { transform: rotate(180deg); }
.refresh svg { width: 14px; height: 14px; stroke-width: 2; }

/* counter */
.counter-card {
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: var(--radius);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.counter-label {
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.counter-value {
  font: 600 56px/1 'JetBrains Mono', monospace;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 10px;
  transition: color 0.2s ease;
}
.counter-value.flash { color: var(--accent); }
.delta {
  font-size: 16px;
  color: var(--ok);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.delta.show { opacity: 1; transform: translateY(0); }
.delta.minus { color: #b3461a; }

.counter-actions {
  display: flex;
  gap: 8px;
}
.icon-btn {
  appearance: none;
  width: 42px; height: 42px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font-size: 20px;
  font-weight: 500;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.12s ease;
}
.icon-btn:hover:not(:disabled) {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
}
.icon-btn:active:not(:disabled) { transform: scale(0.96); }
.icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.locked-hint {
  font-size: 12px;
  color: var(--ink-mute);
  font-style: italic;
}

/* sections */
.instructions-head {
  margin: 48px 0 16px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.instructions-head h2 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
.instructions-head p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 13px;
}

.section {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}
.section-head {
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line-soft);
}
.section-head .num {
  font: 500 11px/1 'JetBrains Mono', monospace;
  color: var(--ink-mute);
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
}
.section-head h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.section-head .desc {
  margin-left: auto;
  color: var(--ink-mute);
  font-size: 13px;
}
.section-body {
  padding: 18px 22px 22px;
}

/* client tabs (Claude Code / Claude Desktop) */
.client-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg);
}
.client-tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--line-soft);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  font: 500 14px/1 'Inter', sans-serif;
  color: var(--ink-mute);
  cursor: pointer;
  transition: color 0.12s ease, background 0.12s ease;
  position: relative;
}
.client-tab:hover { color: var(--ink-soft); }
.client-tab .num {
  font: 500 11px/1 'JetBrains Mono', monospace;
  color: var(--ink-mute);
  padding: 4px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg-elev);
  transition: color 0.12s ease, border-color 0.12s ease;
}
.client-tab.active {
  color: var(--ink);
  background: var(--bg-elev);
}
.client-tab.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--accent);
}
.client-tab.active .num {
  color: var(--ink);
  border-color: var(--accent);
}
.client-panel { display: none; }
.client-panel.active { display: block; }
.scope-block + .scope-block { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line-soft); }

/* scope tabs (for Claude Code) */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 14px;
}
.tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 14px 10px 0;
  margin-right: 22px;
  font: 500 13px/1 'Inter', sans-serif;
  color: var(--ink-mute);
  cursor: pointer;
  transition: color 0.12s ease, border-color 0.12s ease;
  position: relative;
  top: 1px;
}
.tab:hover { color: var(--ink-soft); }
.tab.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.tab small {
  font: 400 11px/1 'JetBrains Mono', monospace;
  color: var(--ink-mute);
  margin-left: 6px;
}

.scope-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-mute);
  margin-bottom: 10px;
}
.scope-meta .pill {
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  font: 500 11px/1.5 'JetBrains Mono', monospace;
}

/* code block */
.code {
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 8px;
  padding: 14px 16px;
  font: 500 13px/1.55 'JetBrains Mono', monospace;
  position: relative;
  overflow-x: auto;
  white-space: pre;
  border: 1px solid #1f1d18;
}
.code .prompt { color: var(--code-mute); user-select: none; }
.code .flag   { color: #e0a96d; }
.code .arg    { color: #a8c8ff; }
.code .url    { color: #79d4a9; }
.code .key    { color: #e0a96d; }
.code .str    { color: #79d4a9; }
.code .punct  { color: var(--code-mute); }
.copy {
  position: absolute;
  top: 10px;
  right: 10px;
  appearance: none;
  background: rgba(255,255,255,0.06);
  color: var(--code-ink);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 6px 10px;
  font: 500 11px/1 'JetBrains Mono', monospace;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.12s ease;
  letter-spacing: 0.04em;
}
.copy:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.22); }
.copy.copied { color: #79d4a9; border-color: rgba(121,212,169,0.4); }
.copy svg { width: 12px; height: 12px; }

/* divider word "or" */
.or-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 12px 0;
  color: var(--ink-mute);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.or-divider::before,
.or-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

/* footer */
footer {
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--ink-mute);
  font-family: 'JetBrains Mono', monospace;
}
footer .status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
footer .status::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
}

@media (max-width: 640px) {
  .page { padding: 20px 18px 64px; }
  .banner { padding: 56px 22px 38px; }
  .title { font-size: 64px; }
  .counter-card { flex-direction: column; align-items: flex-start; gap: 18px; }
  .counter-value { font-size: 44px; }
  .lens { top: 16px; left: 16px; }
  .tag { top: 16px; right: 16px; }
}