/**
 * 泰厚 CHILL 餐飲通路系統 - 設計系統
 * Design System for FB Admin
 */

/* 字型載入 - 必須在最前面 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;600;700&display=swap');

/* ============================================
   1. CSS 變數定義
   ============================================ */
:root {
    /* 品牌色系 */
    --color-primary: #2d5a45;
    --color-primary-light: #3d7a5d;
    --color-primary-dark: #1d3a2d;
    --color-primary-bg: rgba(45, 90, 69, 0.08);
    --color-accent: #d4a574;
    --color-accent-light: #e8c9a7;

    /* 狀態色 */
    --color-success: #10b981;
    --color-success-bg: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-bg: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-bg: #fee2e2;
    --color-info: #3b82f6;
    --color-info-bg: #dbeafe;

    /* 中性色 */
    --color-bg: #f8f9fc;
    --color-surface: #ffffff;
    --color-surface-hover: #fafafa;
    --color-border: #e5e5e5;
    --color-border-light: #f0f0f0;
    --color-text: #333333;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-text-disabled: #cccccc;

    /* 間距系統 (4px 基準) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* 圓角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* 陰影 */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(45, 90, 69, 0.12);
    --shadow-xl: 0 12px 40px rgba(45, 90, 69, 0.16);

    /* 過渡效果 */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* 字型 */
    --font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.8125rem;  /* 13px */
    --font-size-base: 0.875rem; /* 14px */
    --font-size-md: 0.9375rem;  /* 15px */
    --font-size-lg: 1rem;       /* 16px */
    --font-size-xl: 1.125rem;   /* 18px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 2rem;      /* 32px */

    /* Z-index 層級 */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal-backdrop: 300;
    --z-modal: 400;
    --z-toast: 500;

    /* 響應式斷點 (用於 JS 判斷) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
}

/* ============================================
   2. CSS Reset
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

button {
    font-family: inherit;
    cursor: pointer;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   3. 佈局系統
   ============================================ */
.fb-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.fb-page {
    padding: var(--space-5);
    min-height: 100vh;
}

/* Flexbox 工具 */
.fb-flex { display: flex; }
.fb-flex-col { flex-direction: column; }
.fb-flex-wrap { flex-wrap: wrap; }
.fb-items-center { align-items: center; }
.fb-items-start { align-items: flex-start; }
.fb-items-end { align-items: flex-end; }
.fb-justify-center { justify-content: center; }
.fb-justify-between { justify-content: space-between; }
.fb-justify-end { justify-content: flex-end; }
.fb-gap-1 { gap: var(--space-1); }
.fb-gap-2 { gap: var(--space-2); }
.fb-gap-3 { gap: var(--space-3); }
.fb-gap-4 { gap: var(--space-4); }
.fb-gap-6 { gap: var(--space-6); }

/* Grid 系統 */
.fb-grid {
    display: grid;
    gap: var(--space-4);
}

.fb-grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.fb-grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.fb-grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.fb-grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* 響應式 Grid */
.fb-grid-responsive {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.fb-grid-stats {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .fb-grid-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   4. 間距工具類
   ============================================ */
/* Margin */
.fb-m-0 { margin: 0; }
.fb-m-1 { margin: var(--space-1); }
.fb-m-2 { margin: var(--space-2); }
.fb-m-3 { margin: var(--space-3); }
.fb-m-4 { margin: var(--space-4); }
.fb-m-6 { margin: var(--space-6); }

.fb-mt-0 { margin-top: 0; }
.fb-mt-2 { margin-top: var(--space-2); }
.fb-mt-3 { margin-top: var(--space-3); }
.fb-mt-4 { margin-top: var(--space-4); }
.fb-mt-6 { margin-top: var(--space-6); }

.fb-mb-0 { margin-bottom: 0; }
.fb-mb-2 { margin-bottom: var(--space-2); }
.fb-mb-3 { margin-bottom: var(--space-3); }
.fb-mb-4 { margin-bottom: var(--space-4); }
.fb-mb-6 { margin-bottom: var(--space-6); }

/* Padding */
.fb-p-0 { padding: 0; }
.fb-p-2 { padding: var(--space-2); }
.fb-p-3 { padding: var(--space-3); }
.fb-p-4 { padding: var(--space-4); }
.fb-p-5 { padding: var(--space-5); }
.fb-p-6 { padding: var(--space-6); }

/* ============================================
   5. 文字工具類
   ============================================ */
.fb-text-xs { font-size: var(--font-size-xs); }
.fb-text-sm { font-size: var(--font-size-sm); }
.fb-text-base { font-size: var(--font-size-base); }
.fb-text-md { font-size: var(--font-size-md); }
.fb-text-lg { font-size: var(--font-size-lg); }
.fb-text-xl { font-size: var(--font-size-xl); }
.fb-text-2xl { font-size: var(--font-size-2xl); }
.fb-text-3xl { font-size: var(--font-size-3xl); }

.fb-font-normal { font-weight: 400; }
.fb-font-medium { font-weight: 500; }
.fb-font-semibold { font-weight: 600; }
.fb-font-bold { font-weight: 700; }

.fb-text-center { text-align: center; }
.fb-text-right { text-align: right; }
.fb-text-left { text-align: left; }

.fb-text-primary { color: var(--color-primary); }
.fb-text-secondary { color: var(--color-text-secondary); }
.fb-text-muted { color: var(--color-text-muted); }
.fb-text-success { color: var(--color-success); }
.fb-text-warning { color: var(--color-warning); }
.fb-text-danger { color: var(--color-danger); }

.fb-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================
   6. 顯示工具類
   ============================================ */
.fb-hidden { display: none !important; }
.fb-block { display: block; }
.fb-inline { display: inline; }
.fb-inline-block { display: inline-block; }

/* 響應式隱藏 */
@media (max-width: 767px) {
    .fb-hide-mobile { display: none !important; }
}

@media (min-width: 768px) {
    .fb-hide-desktop { display: none !important; }
}

/* ============================================
   7. 動畫
   ============================================ */
@keyframes fb-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fb-slide-up {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fb-slide-down {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fb-spin {
    to { transform: rotate(360deg); }
}

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

@keyframes fb-skeleton {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.fb-animate-fade-in { animation: fb-fade-in var(--transition-normal) ease-out; }
.fb-animate-slide-up { animation: fb-slide-up var(--transition-normal) ease-out; }
.fb-animate-scale-in { animation: fb-scale-in var(--transition-normal) ease-out; }

/* ============================================
   8. 響應式媒體查詢
   ============================================ */
@media (max-width: 639px) {
    .fb-page {
        padding: var(--space-3);
    }

    .fb-container {
        padding: 0 var(--space-3);
    }
}

@media (min-width: 640px) and (max-width: 767px) {
    .fb-page {
        padding: var(--space-4);
    }
}

/* ============================================
   9. 列印樣式
   ============================================ */
@media print {
    body {
        background: white;
    }

    .fb-no-print {
        display: none !important;
    }
}