/* ==========================================================================
   CIRCUIT LAW DESIGN TOKENS
   Semantic + brand token layers for light/dark themes.
   ========================================================================== */

:root {
    /* Brand palette */
    --brand-viridian: #007066;
    --brand-viridian-hover: #005a52;
    --brand-viridian-light: #e0f2f0;
    --brand-viridian-glow: rgba(0, 112, 102, 0.15);
    /* Filled section headers (cascade “All Activities”, etc.) */
    --brand-viridian-header-bg: var(--brand-viridian);

    /* Core palette */
    --color-danger: #dc3545;
    --color-danger-soft: #fff5f5;
    --color-danger-soft-dark: #2a1a1a;
    --color-success: #059669;
    --color-trust:          #2563eb;
    --color-trust-dark:     #1d4ed8;
    --color-trust-soft:     #eff6ff;

    --color-warning:        #d97706;
    --color-warning-dark:   #b45309;
    --color-warning-soft:   #fffbeb;

    --activity-item-bg:         #eff6ff;
    --activity-item-avatar-bg:  #3b82f6;
    --activity-item-matter-fg:  #1d4ed8;

    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f4f3;
    --border: #e5e7eb;
    --border-strong: #d1d5db;

    --text-main: #111827;
    --text-muted: #6b7280;
    --text-on-brand: #111827;
    --text-on-dark: #ffffff;

    --nav-bg: #417865;
    --nav-sub-bg: #2d3e35;

    /* Semantic aliases */
    --color-primary: var(--brand-viridian);
    --color-primary-hover: var(--brand-viridian-hover);
    --bg-page: var(--bg-primary);
    --bg-surface: var(--bg-secondary);
    --bg-subtle: var(--bg-tertiary);
    --text-primary: var(--text-main);
    --text-secondary: var(--text-muted);

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-7: 2rem;

    /* Typography scale */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --line-height-tight: 1.2;
    --line-height-base: 1.5;

    /* Radius scale */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-pill: 9999px;
    --card-radius: var(--radius-sm);

    /* Shadow scale */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 10px 24px rgba(0, 0, 0, 0.25);
    --card-shadow: var(--shadow-md);

    /* Component surfaces */
    --card-bg: var(--bg-secondary);
    --cascade-card-bg: #ffffff;
    --cascade-card-hover: #ffe9d6;
    --cascade-card-shadow: var(--shadow-md);
    --cascade-card-radius: var(--radius-sm);
    --table-row-hover: rgba(0, 112, 102, 0.06);

    /* Activity feed stripes */
    --activity-row-odd: #ffffff;
    --activity-row-even: #f0f5f3;
    --activity-row-hover: #e4ece9;
    --activity-row-accent: var(--brand-viridian);

    /* Breakpoints */
    --bp-sm: 576px;
    --bp-md: 768px;
    --bp-lg: 992px;
    --bp-xl: 1200px;

    /* Legacy aliases */
    --bg: var(--bg-primary);
    --text: var(--text-main);
    --viridian: var(--brand-viridian);
    --viridian-hover: var(--brand-viridian-hover);
    --viridian-glow: var(--brand-viridian-glow);

    /* Login */
    --login-gradient: linear-gradient(
      180deg, #f8f9fa 0%, #e8f2f0 100%
    );
    --login-card-glass: rgba(255, 255, 255, 0.95);
    --login-card-border: rgba(0, 112, 102, 0.1);

    /* Alerts */
    --alert-success-bg: #d1fae5;
    --alert-success-text: #065f46;
    --alert-success-border: transparent;
}

[data-theme='dark'] {
    /* Emerald-leaning accent — reads green, not cyan (#4dd4c8) on dark UI */
    --brand-viridian: #6ee7b7;
    --brand-viridian-hover: #34d399;
    --brand-viridian-light: #1a3330;
    --brand-viridian-glow: rgba(0, 112, 102, 0.3);
    /* Deep viridian for large header bars (matches light brand hue, not bright accent) */
    --brand-viridian-header-bg: #0f433c;

    --bg-primary: #1e1e1e;
    --bg-secondary: #2a2a2a;
    --bg-tertiary: #252525;
    --border: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);

    --text-main: #e8f4f3;
    /* Slightly lighter than Tailwind gray-400 for AA contrast on #2a2a2a */
    --text-muted: #b4bcc6;
    --text-on-brand: #111827;
    --text-on-dark: #ffffff;

    /* Top bar matches sub-nav (light mode uses brand green on main bar). */
    --nav-bg: #1a1a1a;
    --nav-sub-bg: #1a1a1a;

    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --card-bg: var(--bg-secondary);
    --cascade-card-bg: #2a2a2a;
    --cascade-card-hover: #1a3330;
    --cascade-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --table-row-hover: rgba(0, 112, 102, 0.1);

    --activity-row-odd: #0f1f1c;
    --activity-row-even: #142925;
    --activity-row-hover: #1a3330;
    --activity-row-accent: var(--brand-viridian);
    /* Viridian-tinted surface (was #1a2535 blue-gray) */
    --activity-item-bg:         #1a2c28;
    --activity-item-avatar-bg:  #2563eb;
    --activity-item-matter-fg:  var(--brand-viridian);

    /* Semantic aliases */
    --color-primary: var(--brand-viridian);
    --color-primary-hover: var(--brand-viridian-hover);
    --bg-page: var(--bg-primary);
    --bg-surface: var(--bg-secondary);
    --bg-subtle: var(--bg-tertiary);
    --text-primary: var(--text-main);
    --text-secondary: var(--text-muted);

    /* Legacy aliases */
    --bg: var(--bg-primary);
    --text: var(--text-main);
    --viridian: var(--brand-viridian);
    --viridian-hover: var(--brand-viridian-hover);
    --viridian-glow: var(--brand-viridian-glow);

    /* Login */
    --login-gradient: linear-gradient(
      180deg, #1e1e1e 0%, #252525 100%
    );
    --login-card-glass: rgba(42, 42, 42, 0.95);
    --login-card-border: rgba(0, 112, 102, 0.3);

    /* Alerts */
    --alert-success-bg: #064e3b;
    --alert-success-text: #ecfdf5;
    --alert-success-border: #007066;
}