/**
 * AlgoBK Pro — Theme Engine (Light Pro / Dark Pro)
 * Layers on design-tokens.css. Components must consume CSS variables only.
 * Storage key: localStorage['algobk-theme'] = 'light' | 'dark'
 */

/* ── Shared theme chrome (inputs / tables / scrollbars / hover) ── */
:root {
  --theme-transition: background-color var(--duration-normal, 180ms) var(--ease-standard, ease),
    color var(--duration-normal, 180ms) var(--ease-standard, ease),
    border-color var(--duration-normal, 180ms) var(--ease-standard, ease),
    box-shadow var(--duration-normal, 180ms) var(--ease-standard, ease);

  --color-input-bg: var(--color-bg-2);
  --color-input-border: var(--color-border-strong);
  --color-input-text: var(--color-text-1);
  --color-input-placeholder: var(--color-text-3);

  --color-table-header-bg: var(--color-bg-3);
  --color-table-row-bg: var(--color-bg-2);
  --color-table-row-alt: var(--color-bg-1);
  --color-table-border: var(--color-border);

  --color-btn-primary-bg: var(--color-primary);
  --color-btn-primary-text: #ffffff;
  --color-btn-secondary-bg: var(--color-bg-3);
  --color-btn-secondary-text: var(--color-text-1);
  --color-btn-ghost-hover: var(--color-surface-hover);

  --color-hover: var(--color-surface-hover);
  --scrollbar-track: var(--color-bg-1);
  --scrollbar-thumb: rgba(255, 255, 255, 0.18);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);
}

/* ═══════════════════════════════════════════
   Dark Pro (default)
   ═══════════════════════════════════════════ */
:root,
html[data-theme="dark"] {
  color-scheme: dark;

  --color-primary: #1E90FF;
  --color-primary-hover: #3aa0ff;
  --color-primary-muted: rgba(30, 144, 255, 0.14);
  --color-primary-border: rgba(30, 144, 255, 0.28);

  --color-success: #00FF85;
  --color-success-hover: #33ffaa;
  --color-success-muted: rgba(0, 255, 133, 0.12);
  --color-success-ink: #0B1220;

  --color-warning: #F59E0B;
  --color-warning-muted: rgba(245, 158, 11, 0.12);

  --color-danger: #FF5C5C;
  --color-danger-hover: #ff7a7a;
  --color-danger-muted: rgba(255, 92, 92, 0.14);

  --color-info: #1E90FF;
  --color-info-muted: rgba(30, 144, 255, 0.12);

  /* One soft bluish-graphite canvas across the authenticated app. */
  --color-bg-0: #1B1D42;
  --color-bg-1: #1B1D42;
  --color-bg-2: #1B1D42;
  --color-bg-3: #202B40;
  --color-chrome: #1B1D42;
  --color-surface-hover: #202B40;

  --color-text-1: #F9FAFB;
  --color-text-2: #9CA3AF;
  --color-text-3: #6B7280;
  --color-text-disabled: #4B5563;

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.14);
  --color-divider: rgba(255, 255, 255, 0.08);

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
  --shadow-glow-primary: 0 6px 20px rgba(30, 144, 255, 0.28);

  --scrollbar-track: #1B1D42;
  --scrollbar-thumb: rgba(255, 255, 255, 0.16);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);
}

html[data-theme="dark"] body::before {
  background-image: none;
}

/* ═══════════════════════════════════════════
   Light Pro
   ═══════════════════════════════════════════ */
html[data-theme="light"] {
  color-scheme: light;

  --color-primary: #1E90FF;
  --color-primary-hover: #1677d9;
  --color-primary-muted: rgba(30, 144, 255, 0.10);
  --color-primary-border: rgba(30, 144, 255, 0.32);

  --color-success: #059669;
  --color-success-hover: #047857;
  --color-success-muted: rgba(5, 150, 105, 0.10);
  --color-success-ink: #ffffff;

  --color-warning: #D97706;
  --color-warning-muted: rgba(217, 119, 6, 0.12);

  --color-danger: #DC2626;
  --color-danger-hover: #B91C1C;
  --color-danger-muted: rgba(220, 38, 38, 0.10);

  --color-info: #1E90FF;
  --color-info-muted: rgba(30, 144, 255, 0.10);

  --color-bg-0: #F4F6F9;
  --color-bg-1: #FFFFFF;
  --color-bg-2: #FFFFFF;
  --color-bg-3: #EEF1F6;
  --color-chrome: #FFFFFF;
  --color-surface-hover: #F0F3F8;

  --color-text-1: #0F172A;
  --color-text-2: #475569;
  --color-text-3: #64748B;
  --color-text-disabled: #94A3B8;

  --color-border: rgba(15, 23, 42, 0.08);
  --color-border-strong: rgba(15, 23, 42, 0.14);
  --color-divider: rgba(15, 23, 42, 0.08);

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10), 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-glow-primary: 0 4px 16px rgba(30, 144, 255, 0.22);

  --scrollbar-track: #EEF1F6;
  --scrollbar-thumb: rgba(15, 23, 42, 0.18);
  --scrollbar-thumb-hover: rgba(15, 23, 42, 0.30);

  --green-dim: #047857;
  --red-dim: #B91C1C;
}

/* Soft surface transition when toggling (avoid animating every pixel permanently) */
html.theme-animating .strategy-chain-page,
html.theme-animating .bt-window,
html.theme-animating .bt-titlebar,
html.theme-animating .sa-modal,
html.theme-animating .hub-card,
html.theme-animating .dashboard {
  transition: var(--theme-transition);
}

/* Scrollbars: owned by enterprise-ux.css (single global source). Do not redefine here. */

/* Light Pro: soften animated grid if present */
html[data-theme="light"] body::before {
  background-image:
    linear-gradient(rgba(30, 144, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 144, 255, 0.045) 1px, transparent 1px) !important;
  opacity: 0.85;
}

/* ── Theme toggle (top-right nav) ── */
.abk-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 2px;
  border-radius: var(--radius-pill, 999px);
  border: 1px solid var(--color-border-strong, var(--border));
  background: var(--color-bg-3, var(--bg-3));
  flex-shrink: 0;
  height: 30px;
  box-sizing: border-box;
}

.abk-theme-toggle__btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--color-text-3, var(--text-3));
  font-family: var(--font-sans, Inter, sans-serif);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: var(--radius-pill, 999px);
  cursor: pointer;
  line-height: 1.2;
  transition: background var(--duration-fast, 120ms) var(--ease-standard, ease),
    color var(--duration-fast, 120ms) var(--ease-standard, ease);
}

.abk-theme-toggle__btn:hover {
  color: var(--color-text-1, var(--text-1));
}

.abk-theme-toggle__btn.is-active {
  background: var(--color-primary, #1E90FF);
  color: #ffffff;
  box-shadow: var(--shadow-glow-primary);
}

.abk-theme-toggle__btn:focus-visible {
  outline: 2px solid var(--color-primary, #1E90FF);
  outline-offset: 2px;
}

html[data-theme="light"] .abk-theme-toggle {
  background: var(--color-bg-0);
  box-shadow: var(--shadow-sm);
}

/* Landing / marketing shells that alias --bg / --panel locally */
html[data-theme="dark"] {
  --bg: var(--color-bg-0);
  --panel: var(--color-bg-1);
  --panel-2: var(--color-bg-2);
  --border: var(--color-border-strong);
  --border-soft: var(--color-border);
}

html[data-theme="light"] {
  --bg: var(--color-bg-0);
  --panel: var(--color-bg-1);
  --panel-2: var(--color-bg-3);
  --border: var(--color-border-strong);
  --border-soft: var(--color-border);
  --chart-vp-bar: rgba(37, 99, 235, 0.22);
  --chart-vp-va: rgba(37, 99, 235, 0.45);
  --chart-vp-poc: #ca8a04;
  --chart-oi-ce: rgba(220, 38, 38, 0.4);
  --chart-oi-pe: rgba(13, 148, 136, 0.4);
}

html[data-theme="light"] body {
  background-image:
    radial-gradient(circle at 15% 10%, rgba(30, 144, 255, 0.06), transparent 45%),
    radial-gradient(circle at 85% 90%, rgba(30, 144, 255, 0.04), transparent 45%);
}

/* Compact placement next to market switch / clock */
.page-window-titlebar-tools .abk-theme-toggle,
.topbar-right .abk-theme-toggle,
.header-actions .abk-theme-toggle,
.nav-right .abk-theme-toggle {
  margin-left: 2px;
}