:root {
  color-scheme: dark;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: #f4f4f5;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, .035);
  cursor: pointer;
  font: 700 18px/1 ui-sans-serif, system-ui, sans-serif;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: #fff;
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, .075);
  transform: translateY(-1px);
  outline: none;
}

.theme-toggle__icon {
  display: block;
  transform: translateY(-1px);
}

@media (max-width: 760px) {
  .hqs-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .hqs-brand {
    grid-column: 1;
    grid-row: 1;
  }

  .theme-toggle {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .hqs-nav {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f5f8;
  --surface: rgba(255, 255, 255, .88);
  --surface-solid: #ffffff;
  --surface-soft: rgba(15, 23, 42, .035);
  --line: rgba(15, 23, 42, .13);
  --line-strong: rgba(15, 23, 42, .25);
  --text: #18181b;
  --muted: #5d6470;
  --muted-2: #7b8290;
  --pink: #bd2a9b;
  --cyan: #087d8b;
  --lime: #4d7600;
  --amber: #936000;
  --red: #c23e48;
  --shadow: 0 24px 64px rgba(18, 24, 40, .09);
}

:root[data-theme="light"] body {
  color: var(--text);
  background:
    radial-gradient(circle at 8% 4%, rgba(240, 68, 196, .1), transparent 30rem),
    radial-gradient(circle at 94% 28%, rgba(82, 217, 234, .1), transparent 32rem),
    var(--bg);
}

:root[data-theme="light"] body::before {
  opacity: .5;
  background-image:
    linear-gradient(rgba(15, 23, 42, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, .045) 1px, transparent 1px);
}

:root[data-theme="light"] .hqs-brand__logo {
  border-color: rgba(15, 23, 42, .14);
  box-shadow: 0 0 26px rgba(189, 42, 155, .12);
}

:root[data-theme="light"] .hqs-nav__link,
:root[data-theme="light"] .theme-toggle {
  color: #454b57;
  border-color: var(--line);
  background: rgba(255, 255, 255, .7);
}

:root[data-theme="light"] .hqs-nav__link:hover,
:root[data-theme="light"] .hqs-nav__link:focus-visible,
:root[data-theme="light"] .theme-toggle:hover,
:root[data-theme="light"] .theme-toggle:focus-visible {
  color: #111318;
  border-color: var(--line-strong);
  background: #fff;
}

:root[data-theme="light"] .hqs-nav__link[aria-current="page"] {
  color: #7d1767;
  border-color: rgba(189, 42, 155, .3);
  background: rgba(189, 42, 155, .075);
}

:root[data-theme="light"] .hqs-nav__channel::before {
  background: #72a600;
  box-shadow: 0 0 10px rgba(114, 166, 0, .38);
}

/* Home */
:root[data-theme="light"] .eyebrow,
:root[data-theme="light"] .lead,
:root[data-theme="light"] .kicker {
  color: #4e5561;
}

:root[data-theme="light"] .hero__panel {
  background: var(--surface);
  box-shadow: var(--shadow);
}

:root[data-theme="light"] .panel__bar,
:root[data-theme="light"] .topic__index,
:root[data-theme="light"] .footer {
  color: var(--muted-2);
}

:root[data-theme="light"] .panel__dots i {
  background: #a4a9b2;
}

:root[data-theme="light"] .topic__name {
  color: #202329;
}

:root[data-theme="light"] .topic__signal {
  border-color: rgba(15, 23, 42, .42);
}

:root[data-theme="light"] .hero__glow {
  border-color: rgba(15, 23, 42, .05);
  background: radial-gradient(circle, rgba(169, 110, 243, .11), rgba(240, 68, 196, .035) 42%, transparent 69%);
}

:root[data-theme="light"] .gaming-motion {
  --motion-opacity: .62;
  opacity: var(--motion-opacity);
}

:root[data-theme="light"] .gaming-motion::before {
  background: radial-gradient(circle, rgba(169, 110, 243, .13), rgba(189, 42, 155, .035) 48%, transparent 70%);
}

:root[data-theme="light"] .gaming-motion__ring--outer {
  border-color: rgba(189, 42, 155, .2);
}

:root[data-theme="light"] .gaming-motion__ring--inner {
  border-color: rgba(8, 125, 139, .16);
}

:root[data-theme="light"] .gaming-symbol {
  color: #303640;
  border-color: rgba(15, 23, 42, .13);
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 42px rgba(18, 24, 40, .12), inset 0 1px rgba(255, 255, 255, .7);
}

:root[data-theme="light"] .gaming-symbol--seven,
:root[data-theme="light"] .gaming-symbol--heart { color: var(--pink); }
:root[data-theme="light"] .gaming-symbol--spade { color: #8050bf; }
:root[data-theme="light"] .gaming-symbol--diamond { color: var(--cyan); }
:root[data-theme="light"] .gaming-symbol--club { color: var(--lime); }
:root[data-theme="light"] .gaming-symbol--star { color: var(--amber); }

:root[data-theme="light"] .casino-ticker {
  background: rgba(15, 23, 42, .025);
}

:root[data-theme="light"] .hero__panel::after {
  opacity: .26;
  background: linear-gradient(180deg, transparent 40%, rgba(8, 125, 139, .09) 49%, transparent 58%);
}

@media (max-width: 560px) {
  :root[data-theme="light"] .gaming-motion {
    opacity: .46;
  }
}

:root[data-theme="light"] .button,
:root[data-theme="light"] .action-button {
  color: #fff;
  border-color: #18181b;
  background: #18181b;
  box-shadow: 0 14px 36px rgba(15, 23, 42, .16);
}

:root[data-theme="light"] .button:hover,
:root[data-theme="light"] .button:focus-visible,
:root[data-theme="light"] .action-button:hover,
:root[data-theme="light"] .action-button:focus-visible {
  color: #fff;
  background: #050507;
}

/* Shared playbook surfaces */
:root[data-theme="light"] .card,
:root[data-theme="light"] .section-card,
:root[data-theme="light"] .phase,
:root[data-theme="light"] .manual-card,
:root[data-theme="light"] .decision-logic {
  background: var(--surface);
  box-shadow: var(--shadow);
}

:root[data-theme="light"] .hero-copy,
:root[data-theme="light"] .mode-summary,
:root[data-theme="light"] .logic-row p,
:root[data-theme="light"] .decision-state p,
:root[data-theme="light"] .gate ul,
:root[data-theme="light"] .compact-list,
:root[data-theme="light"] .status-list li,
:root[data-theme="light"] .disclosure {
  color: #4f5662;
}

:root[data-theme="light"] .hero-note,
:root[data-theme="light"] .gate,
:root[data-theme="light"] .insight,
:root[data-theme="light"] .estimate-note,
:root[data-theme="light"] .disclosure {
  box-shadow: none;
}

:root[data-theme="light"] .hero-note p,
:root[data-theme="light"] .estimate-note,
:root[data-theme="light"] .insight {
  color: #6e5415;
}

:root[data-theme="light"] .mode-switch,
:root[data-theme="light"] .workflow-bar {
  background: rgba(255, 255, 255, .91);
  box-shadow: 0 16px 38px rgba(18, 24, 40, .1);
}

:root[data-theme="light"] .mode-button:hover,
:root[data-theme="light"] .mode-button:focus-visible {
  color: #111318;
}

:root[data-theme="light"] .mode-button[aria-selected="true"] {
  color: #fff;
  background: #1c1d21;
  box-shadow: 0 8px 22px rgba(15, 23, 42, .16);
}

:root[data-theme="light"] .goal-item,
:root[data-theme="light"] .serp-option,
:root[data-theme="light"] .phase-note {
  background: rgba(15, 23, 42, .025);
}

:root[data-theme="light"] .goal-item strong,
:root[data-theme="light"] .check-item {
  color: #2b3038;
}

:root[data-theme="light"] .progress-bar,
:root[data-theme="light"] .progress-track {
  background: rgba(15, 23, 42, .1);
}

:root[data-theme="light"] .step:has(input:checked) .step-title {
  color: var(--lime);
}

:root[data-theme="light"] .phase-nav a:hover,
:root[data-theme="light"] .phase-nav a:focus-visible {
  color: #111318;
  background: rgba(15, 23, 42, .055);
}

:root[data-theme="light"] .field input {
  color: var(--text);
  background: rgba(255, 255, 255, .72);
}

:root[data-theme="light"] .check-item:has(input:checked) > span {
  text-decoration-color: rgba(15, 23, 42, .28);
}

:root[data-theme="light"] .serp-option:has(input:checked) {
  border-color: rgba(8, 125, 139, .36);
  background: rgba(8, 125, 139, .065);
}

:root[data-theme="light"] .serp-option em,
:root[data-theme="light"] .entity .icon {
  color: #303640;
  background: rgba(15, 23, 42, .055);
}

:root[data-theme="light"] .action-button.secondary {
  color: #303640;
  border-color: var(--line);
  background: rgba(255, 255, 255, .72);
  box-shadow: none;
}

:root[data-theme="light"] .template,
:root[data-theme="light"] .folder-tree {
  color: #27303b;
  background: #f8fafc;
}

:root[data-theme="light"] .copy-button {
  color: #3c4552;
  background: rgba(255, 255, 255, .96);
}

:root[data-theme="light"] .copy-button:hover,
:root[data-theme="light"] .copy-button:focus-visible,
:root[data-theme="light"] .sources a:hover,
:root[data-theme="light"] .sources a:focus-visible {
  color: #111318;
}

:root[data-theme="light"] .sources a {
  color: #424a56;
}

@media print {
  .theme-toggle {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .theme-toggle {
    transition-duration: .01ms !important;
  }
}