/* 
 * KEICHA Global Styles (v1.0.0)
 * 集中管理品牌色系、通用 UI 組件與全域樣式。
 */

:root {
    /* 品牌色系 (Brand Colors) */
    --brand-green: #6ea44c;
    --brand-green-hover: #5d8d41;
    --brand-green-light: #f9fdf7;
    --brand-green-alpha: rgba(110, 164, 76, 0.1);

    /* 灰色系 (Grays) */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;

    /* 圓角規模 (Border Radius Tokens) */
    --r-sm: 8px;
    --r-md: 16px;
    --r-lg: 24px;
    --r-full: 9999px;
}

/* --- 1. 基礎重置 (Base Reset) --- */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

/* 全域捲軸優化 (Global Scrollbar Optimization) */
/* 預設使用低調捲軸，且僅在內容溢出時出現 (overflow: auto) */
html,
body {
    overflow-y: auto;
    overflow-x: hidden;
    -ms-overflow-style: auto;
    scrollbar-width: thin;
    scrollbar-color: #e5e7eb transparent;
}

/* Chrome, Safari, Edge 自定義樣式 */
html::-webkit-scrollbar,
body::-webkit-scrollbar,
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
    display: block;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track,
.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
.custom-scrollbar::-webkit-scrollbar-thumb {
    background-color: #e5e7eb;
    /* gray-200 */
    background-clip: padding-box;
    border: 2px solid transparent;
    /* 核心：透過透明邊界讓滑塊看起來變細 */
    border-radius: 10px;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover,
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background-color: #d1d5db;
    /* gray-300 */
}

/* --- 2. 品牌工具類 (Brand Utilities) --- */
.brand-green {
    color: var(--brand-green);
}

.bg-brand-green {
    background-color: var(--brand-green);
}

.hover\:bg-brand-green-hover:hover {
    background-color: var(--brand-green-hover);
}

.border-brand-green {
    border-color: var(--brand-green);
}

/* --- 3. 通用 UI 組件 (Common Components) --- */

/* 標準卡片容器 (Section Card) */
.section-card {
    background: white;
    padding: 24px;
    border-radius: var(--r-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

@media (max-width: 640px) {
    .section-card {
        padding: 16px;
        border-radius: var(--r-md);
        margin-bottom: 16px;
    }
}

/* 標準輸入框 (Unified Input) */
/* 兼容舊項目的 .diy-input */
.diy-input,
.k-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--r-md);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s;
    background-color: #fff;
    color: var(--gray-800);
}

.diy-input:focus,
.k-input:focus {
    border-color: var(--brand-green);
    box-shadow: 0 0 0 3px var(--brand-green-alpha);
    background-color: #fff;
}

.diy-input::placeholder,
.k-input::placeholder {
    color: var(--gray-400);
}

/* 物流選項卡片 */
.logistics-card {
    border: 2px solid var(--gray-100);
    border-radius: var(--r-md);
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    background-color: var(--gray-50);
}

.logistics-card:hover {
    border-color: var(--gray-200);
}

.logistics-card.active {
    border-color: var(--brand-green);
    background-color: var(--brand-green-light);
}

.logistics-card.active .icon-active {
    color: var(--brand-green) !important;
}

/* 按鈕系統 */
.btn-outline-green {
    background-color: white;
    color: var(--brand-green);
    border: 1px solid var(--brand-green);
    padding: 8px 16px;
    border-radius: var(--r-md);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    transition: all 150ms;
    cursor: pointer;
}

.btn-outline-green:hover {
    background-color: var(--gray-50);
}

.btn-outline-green:active {
    transform: scale(0.95);
}

.btn-loading {
    background-color: var(--gray-400) !important;
    border-color: var(--gray-400) !important;
    cursor: not-allowed !important;
    color: white !important;
}

/* --- 4. 輔助工具 (Layout Helpers) --- */

/* iOS 安全區域 */
.safe-area-pb {
    padding-bottom: env(safe-area-inset-bottom, 20px);
}

@supports not (padding-bottom: env(safe-area-inset-bottom)) {
    .safe-area-pb {
        padding-bottom: 20px;
    }
}

/* 遮罩層 (Overlay) */
.overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 190;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
    backdrop-filter: blur(4px);
}

.overlay.open {
    opacity: 1;
    visibility: visible;
}

/* --- 5. 動畫 (Animations) --- */
.animate-spin-custom {
    animation: k-spin 1s linear infinite;
}

@keyframes k-spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* 圖片容器 (1:1) */
.square-img-container {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--r-md);
    overflow: hidden;
    background-color: var(--gray-100);
}

.square-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}