/* ============================================================
   tokens.css - DESIGN TOKENS - Single Source of Truth
   ============================================================ */

:root {
    /* ==========================================================
       COLORS - Light Theme (Default)
       ========================================================== */
    /* Primary - Deep Slate Blue (from logo bottom-right hexagon) */
    --color-primary: #3A6B8C;
    --color-primary-dark: #2C526B;
    --color-primary-light: #EBF2F7;
    --color-primary-hover: #2C526B;
    --color-primary-focus: rgba(58, 107, 140, 0.25);
    /* Secondary - Vibrant Orange (from logo top hexagon) */
    --color-accent: #E8832A;
    --color-accent-light: #FEF3E8;
    --color-accent-dark: #C96A1A;
    /* Backgrounds */
    --color-background: #F4F6F8;
    --color-surface: #FFFFFF;
    --color-surface-hover: #F8FAFC;
    --color-surface-alt: #FAFBFC;
    /* Borders */
    --color-border: #D8DDE3;
    --color-border-light: #E2E8F0;
    /* Text */
    --color-text: #1F2937;
    --color-text-secondary: #4B5563;
    --color-text-muted: #6B7280;
    --color-text-light: #94A3B8;
    --color-text-inverse: #FFFFFF;
    /* Dropdown */
    --color-dropdown-bg: #FFFFFF;
    --color-dropdown-border: var(--color-border);
    --color-dropdown-hover: var(--color-surface-hover);
    /* Semantic - Aligned with logo hues */
    --color-danger: #D9534F;
    --color-danger-light: #FDE8EA;
    --color-danger-hover: #B91C1C;
    --color-warning: #F0AD4E;
    --color-warning-light: #FEF3C7;
    --color-success: #5CB85C;
    --color-success-light: #ECFDF5;
    --color-info: #5BC0DE;
    --color-info-light: #EFF6FF;
    /* ==========================================================
       TYPOGRAPHY
       ========================================================== */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', system-ui, sans-serif;
    --font-family-monospace: 'SF Mono', 'Cascadia Code', 'Consolas', 'Liberation Mono', 'Menlo', 'Courier New', monospace;
    /* Mobile-first font sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.8125rem;
    --font-size-base: 0.875rem;
    --font-size-md: 0.9375rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.125rem;
    --font-size-2xl: 1.25rem;
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 2rem;
    /* Font weights */
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    /* Line heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;
    /* Letter spacing */
    --letter-spacing-tight: -0.3px;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.5px;
    --letter-spacing-wider: 1.2px;
    --letter-spacing-widest: 2.5px;
    /* ==========================================================
       SPACING
       ========================================================== */
    --space-0: 0;
    --space-0-5: 0.125rem;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --space-8: 3rem;
    /* ==========================================================
       LAYOUT
       ========================================================== */
    --content-max-width: 1400px;
    --page-padding-x: 1rem;
    --page-padding-y: 1rem;
    /* Card constraints */
    --auth-card-max-width: 440px;
    --landing-card-max-width: 720px;
    /* ==========================================================
       CONTROLS
       ========================================================== */
    --control-min-height: 44px;
    --control-min-height-sm: 38px;
    --touch-target-min: 44px;
    --touch-target-comfort: 48px;
    /* ==========================================================
       COMPONENTS
       ========================================================== */
    --header-height: 64px;
    --header-height-tablet: 76px;
    --card-padding-x: 1.25rem;
    --card-padding-y: 1.25rem;
    /* Page Options */
    --page-options-padding-y: var(--space-2);
    --page-options-padding-x: var(--space-3);
    --page-options-gap: var(--space-2);
    --page-options-bg: var(--color-surface);
    --page-options-border: var(--color-border-light);
    --page-options-radius: var(--radius-md);
    --page-options-shadow: var(--shadow-sm);
    /* ==========================================================
       DETAIL VIEW ITEMS
       ========================================================== */
    --detail-item-padding: 0.5rem;
    --detail-label-font-size: 0.7rem;
    --detail-label-font-weight: 600;
    --detail-label-letter-spacing: 0.5px;
    --detail-value-font-weight: 600;
    --detail-gap: 0.25rem;
    --detail-min-height: 44px;
    /* ==========================================================
       VISUAL
       ========================================================== */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.12);
    --transition-fast: 0.15s ease;
    --transition: 0.25s ease;
    --transition-slow: 0.4s ease;
    /* ==========================================================
       Z-INDEX - Layered scale (increments of 10)
       ========================================================== */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-header: 1030;
    --z-backdrop: 1040;
    --z-offcanvas: 1050;
    --z-modal: 1060;
    --z-toast: 1070;
    /* ==========================================================
       SAFE AREA
       ========================================================== */
    --safe-area-bottom: 0px;
    --safe-area-top: 0px;
    --safe-area-left: 0px;
    --safe-area-right: 0px;
}

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
    --color-background: #0F172A;
    --color-surface: #1E293B;
    --color-surface-hover: #2D3B4F;
    --color-surface-alt: #1A2537;
    --color-border: #334155;
    --color-border-light: #2D3748;
    --color-text: #E2E8F0;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;
    --color-text-light: #4B5563;
    --color-text-inverse: #FFFFFF;
    --color-dropdown-bg: #1E293B;
    --color-dropdown-border: #334155;
    --color-dropdown-hover: #2D3B4F;
    --color-primary-light: #1A2E4A;
    --color-primary-focus: rgba(58, 107, 140, 0.4);
    --color-danger-light: #3D1A1A;
    --color-warning-light: #3D2A0A;
    --color-success-light: #0A2A1A;
    --color-info-light: #0A1A3D;
    --page-options-bg: var(--color-surface);
    --page-options-border: var(--color-border);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* System preference dark mode */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-background: #0F172A;
        --color-surface: #1E293B;
        --color-surface-hover: #2D3B4F;
        --color-surface-alt: #1A2537;
        --color-border: #334155;
        --color-border-light: #2D3748;
        --color-text: #E2E8F0;
        --color-text-secondary: #94A3B8;
        --color-text-muted: #64748B;
        --color-text-light: #4B5563;
        --color-dropdown-bg: #1E293B;
        --color-dropdown-border: #334155;
        --color-dropdown-hover: #2D3B4F;
        --color-primary-light: #1A2E4A;
        --color-primary-focus: rgba(58, 107, 140, 0.4);
        --color-danger-light: #3D1A1A;
        --color-warning-light: #3D2A0A;
        --color-success-light: #0A2A1A;
        --color-info-light: #0A1A3D;
        --page-options-bg: var(--color-surface);
        --page-options-border: var(--color-border);
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
        --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.4);
    }
}

/* ============================================================
   RESPONSIVE TOKENS
   ============================================================ */
@media (min-width: 768px) {
    :root {
        --header-height: var(--header-height-tablet);
        --page-options-padding-y: var(--space-3);
        --page-options-padding-x: var(--space-4);
        --page-padding-x: 1.5rem;
        --page-padding-y: 1.25rem;
        --card-padding-x: 1.75rem;
        --card-padding-y: 1.75rem;
    }
}

@media (min-width: 1200px) {
    :root {
        --page-options-padding-y: var(--space-3);
        --page-options-padding-x: var(--space-5);
        --page-padding-x: 2rem;
        --page-padding-y: 1.75rem;
        --card-padding-x: 2rem;
        --card-padding-y: 2rem;
    }
}

/* ============================================================
   SAFE AREA SUPPORT
   ============================================================ */
@supports (padding: env(safe-area-inset-bottom)) {
    :root {
        --safe-area-bottom: env(safe-area-inset-bottom);
        --safe-area-top: env(safe-area-inset-top);
        --safe-area-left: env(safe-area-inset-left);
        --safe-area-right: env(safe-area-inset-right);
    }
}