/**
 * DGA Post Editor - Design Tokens
 *
 * Airbnb-style Design System
 * ระบบ Design Token กลางสำหรับ Plugin ทั้งหมด
 *
 * @package DGA_Post_Editor
 * @version 1.0.0
 */

:root {
    /* ========================================
       PRIMARY COLORS (DGA Blue)
       ======================================== */
    --dgape-primary-50: #e6f4ff;
    --dgape-primary-100: #bae0ff;
    --dgape-primary-200: #91caff;
    --dgape-primary-300: #69b1ff;
    --dgape-primary-400: #4096ff;
    --dgape-primary-500: #1e73be;  /* Main DGA Blue */
    --dgape-primary-600: #1a5fa0;
    --dgape-primary-700: #154b82;
    --dgape-primary-800: #103764;
    --dgape-primary-900: #0b2346;

    /* ========================================
       NEUTRAL COLORS (Grays)
       ======================================== */
    --dgape-gray-50: #fafafa;
    --dgape-gray-100: #f5f5f5;
    --dgape-gray-200: #e8e8e8;
    --dgape-gray-300: #d9d9d9;
    --dgape-gray-400: #bfbfbf;
    --dgape-gray-500: #8c8c8c;
    --dgape-gray-600: #595959;
    --dgape-gray-700: #434343;
    --dgape-gray-800: #262626;
    --dgape-gray-900: #141414;

    /* ========================================
       SEMANTIC COLORS
       ======================================== */
    /* Success (Green) */
    --dgape-success-light: #f6ffed;
    --dgape-success: #52c41a;
    --dgape-success-dark: #389e0d;

    /* Error (Red) */
    --dgape-error-light: #fff2f0;
    --dgape-error: #ff4d4f;
    --dgape-error-dark: #cf1322;

    /* Warning (Orange) */
    --dgape-warning-light: #fffbe6;
    --dgape-warning: #faad14;
    --dgape-warning-dark: #d48806;

    /* Info (Blue) */
    --dgape-info-light: #e6f7ff;
    --dgape-info: #1890ff;
    --dgape-info-dark: #096dd9;

    /* ========================================
       BACKGROUND COLORS
       ======================================== */
    --dgape-bg-primary: #ffffff;
    --dgape-bg-secondary: #fafafa;
    --dgape-bg-tertiary: #f5f5f5;
    --dgape-bg-hover: rgba(0, 0, 0, 0.04);
    --dgape-bg-active: rgba(0, 0, 0, 0.06);
    --dgape-bg-overlay: rgba(0, 0, 0, 0.45);
    --dgape-bg-modal-overlay: rgba(0, 0, 0, 0.6);

    /* ========================================
       TEXT COLORS
       ======================================== */
    --dgape-text-primary: #262626;
    --dgape-text-secondary: #595959;
    --dgape-text-tertiary: #8c8c8c;
    --dgape-text-disabled: #bfbfbf;
    --dgape-text-inverse: #ffffff;
    --dgape-text-link: var(--dgape-primary-500);
    --dgape-text-link-hover: var(--dgape-primary-600);

    /* ========================================
       BORDER COLORS
       ======================================== */
    --dgape-border-light: #f0f0f0;
    --dgape-border-default: #d9d9d9;
    --dgape-border-dark: #bfbfbf;
    --dgape-border-focus: var(--dgape-primary-500);

    /* ========================================
       TYPOGRAPHY
       ======================================== */
    /* Font Family */
    --dgape-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                         'Helvetica Neue', Arial, 'Noto Sans Thai', sans-serif;
    --dgape-font-family-mono: 'SF Mono', SFMono-Regular, Consolas,
                              'Liberation Mono', Menlo, monospace;

    /* Font Sizes */
    --dgape-text-xs: 0.75rem;     /* 12px */
    --dgape-text-sm: 0.875rem;    /* 14px */
    --dgape-text-base: 1rem;      /* 16px */
    --dgape-text-lg: 1.125rem;    /* 18px */
    --dgape-text-xl: 1.25rem;     /* 20px */
    --dgape-text-2xl: 1.5rem;     /* 24px */
    --dgape-text-3xl: 1.875rem;   /* 30px */

    /* Font Weights */
    --dgape-font-normal: 400;
    --dgape-font-medium: 500;
    --dgape-font-semibold: 600;
    --dgape-font-bold: 700;

    /* Line Heights */
    --dgape-leading-tight: 1.25;
    --dgape-leading-normal: 1.5;
    --dgape-leading-relaxed: 1.75;

    /* ========================================
       SPACING (8px Base Grid)
       ======================================== */
    --dgape-space-0: 0;
    --dgape-space-1: 0.25rem;   /* 4px */
    --dgape-space-2: 0.5rem;    /* 8px */
    --dgape-space-3: 0.75rem;   /* 12px */
    --dgape-space-4: 1rem;      /* 16px */
    --dgape-space-5: 1.25rem;   /* 20px */
    --dgape-space-6: 1.5rem;    /* 24px */
    --dgape-space-8: 2rem;      /* 32px */
    --dgape-space-10: 2.5rem;   /* 40px */
    --dgape-space-12: 3rem;     /* 48px */
    --dgape-space-16: 4rem;     /* 64px */

    /* ========================================
       SIZING
       ======================================== */
    /* Component Heights */
    --dgape-height-sm: 32px;
    --dgape-height-md: 40px;
    --dgape-height-lg: 48px;

    /* Icon Sizes */
    --dgape-icon-sm: 16px;
    --dgape-icon-md: 20px;
    --dgape-icon-lg: 24px;

    /* ========================================
       BORDER RADIUS (Airbnb Style)
       ======================================== */
    --dgape-radius-none: 0;
    --dgape-radius-sm: 4px;
    --dgape-radius-md: 8px;
    --dgape-radius-lg: 12px;
    --dgape-radius-xl: 16px;
    --dgape-radius-2xl: 24px;
    --dgape-radius-full: 9999px;

    /* ========================================
       BOX SHADOWS (Airbnb Style)
       ======================================== */
    --dgape-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --dgape-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1),
                       0 1px 2px rgba(0, 0, 0, 0.06);
    --dgape-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                       0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --dgape-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
                       0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --dgape-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
                       0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Airbnb-style Modal Shadow */
    --dgape-shadow-modal: 0 8px 28px rgba(0, 0, 0, 0.28);

    /* Elevated Card Shadow */
    --dgape-shadow-card: 0 6px 16px rgba(0, 0, 0, 0.12);
    --dgape-shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.16);

    /* Focus Ring */
    --dgape-shadow-focus: 0 0 0 3px rgba(30, 115, 190, 0.2);
    --dgape-shadow-focus-error: 0 0 0 3px rgba(255, 77, 79, 0.2);

    /* ========================================
       TRANSITIONS
       ======================================== */
    --dgape-transition-fast: 150ms ease;
    --dgape-transition-normal: 200ms ease;
    --dgape-transition-slow: 300ms ease;
    --dgape-transition-bounce: 300ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Specific Transitions */
    --dgape-transition-color: color var(--dgape-transition-fast);
    --dgape-transition-bg: background-color var(--dgape-transition-fast);
    --dgape-transition-shadow: box-shadow var(--dgape-transition-normal);
    --dgape-transition-transform: transform var(--dgape-transition-normal);
    --dgape-transition-opacity: opacity var(--dgape-transition-normal);
    --dgape-transition-all: all var(--dgape-transition-normal);

    /* ========================================
       Z-INDEX SCALE (Normalized)
       ======================================== */
    --dgape-z-base: 1;
    --dgape-z-dropdown: 100;
    --dgape-z-sticky: 200;
    --dgape-z-fixed: 300;
    --dgape-z-modal-backdrop: 1000;
    --dgape-z-modal: 1001;
    --dgape-z-popover: 1050;
    --dgape-z-tooltip: 1100;
    --dgape-z-notification: 1200;

    /* ========================================
       ANIMATION KEYFRAMES
       ======================================== */
    /* Defined at bottom */
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes dgape-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes dgape-fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes dgape-slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes dgape-slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes dgape-scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes dgape-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes dgape-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes dgape-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

@keyframes dgape-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */
@media (prefers-color-scheme: dark) {
    :root {
        /* Override colors for dark mode */
        --dgape-bg-primary: #1a1a1a;
        --dgape-bg-secondary: #262626;
        --dgape-bg-tertiary: #303030;
        --dgape-bg-hover: rgba(255, 255, 255, 0.08);
        --dgape-bg-active: rgba(255, 255, 255, 0.12);

        --dgape-text-primary: #f5f5f5;
        --dgape-text-secondary: #a6a6a6;
        --dgape-text-tertiary: #737373;
        --dgape-text-disabled: #525252;

        --dgape-border-light: #303030;
        --dgape-border-default: #404040;
        --dgape-border-dark: #525252;

        /* Adjusted shadows for dark mode */
        --dgape-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --dgape-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
        --dgape-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
        --dgape-shadow-modal: 0 8px 28px rgba(0, 0, 0, 0.5);
    }
}

/* ========================================
   HIGH CONTRAST MODE
   ======================================== */
@media (prefers-contrast: high) {
    :root {
        --dgape-text-primary: #000000;
        --dgape-text-secondary: #333333;
        --dgape-border-default: #000000;
        --dgape-border-focus: #0000ff;
    }
}

/* ========================================
   REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    :root {
        --dgape-transition-fast: 0ms;
        --dgape-transition-normal: 0ms;
        --dgape-transition-slow: 0ms;
        --dgape-transition-bounce: 0ms;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}