/**
 * 拼豆樂園 - 美式童趣 APP 風格設計系統
 * 可愛、時尚、糖果色系
 */

/* ========================================
   Google Fonts 備用宣告（由 layout 載入）
   Fredoka + Nunito
   ======================================== */

/* ========================================
   CSS 自訂屬性（全域變數）
   ======================================== */
:root {
    /* 主色調 */
    --candy-pink: #FF6B8A;
    --candy-pink-light: #FFB3C6;
    --candy-pink-dark: #E55072;
    --mint-green: #7EC8A0;
    --mint-green-light: #B5E4CA;
    --mint-green-dark: #5DA87D;
    --baby-blue: #7CB7F0;
    --baby-blue-light: #B8D8F7;
    --baby-blue-dark: #5A94CC;
    --lavender: #B39DDB;
    --lavender-light: #D5C8EC;
    --lavender-dark: #8E73B5;
    --butter-yellow: #FFE082;
    --butter-yellow-light: #FFEDB0;
    --butter-yellow-dark: #E0C155;
    --peach: #FFAB76;
    --peach-light: #FFCBAA;
    --peach-dark: #E08850;
    --coral: #FF7F7F;

    /* 中性色 */
    --bg-cream: #FFF8F0;
    --bg-white: #FFFFFF;
    --text-primary: #4A3F6B;
    --text-secondary: #8A7FA8;
    --text-muted: #B8AFC8;
    --border-light: #F0E8F5;

    /* 圓角 */
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 50px;

    /* 陰影 */
    --shadow-card: 0 6px 24px rgba(255, 107, 138, 0.12), 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 12px 36px rgba(255, 107, 138, 0.18), 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-btn: 0 4px 14px rgba(255, 107, 138, 0.25);
    --shadow-btn-hover: 0 6px 20px rgba(255, 107, 138, 0.35);
    --shadow-nav: 0 2px 20px rgba(180, 160, 210, 0.15);

    /* 過渡 */
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   基礎重置與全域樣式
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    background-color: var(--bg-cream);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 背景裝飾圖案 */
body::before {
    content: '';
    position: fixed;
    top: -180px;
    right: -120px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 171, 118, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -100px;
    left: -80px;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(179, 157, 219, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Fredoka', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

a {
    color: var(--candy-pink);
    text-decoration: none;
    transition: color 0.2s var(--transition-smooth);
}

a:hover {
    color: var(--candy-pink-dark);
}

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

/* ========================================
   導覽列 - 可愛泡泡風格
   ======================================== */
.navbar {
    background: var(--bg-white) !important;
    box-shadow: var(--shadow-nav);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    border-bottom: 4px solid transparent;
    border-image: linear-gradient(90deg, var(--candy-pink), var(--lavender), var(--baby-blue), var(--mint-green)) 1;
}

.navbar-brand {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--candy-pink) !important;
    letter-spacing: 0.03em;
    transition: transform 0.3s var(--transition-bounce);
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: var(--candy-pink-dark) !important;
}

.navbar .nav-link {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-primary) !important;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-full);
    margin: 0 0.15rem;
    transition: all 0.3s var(--transition-bounce);
    position: relative;
}

.navbar .nav-link:hover {
    background: linear-gradient(135deg, var(--candy-pink-light), var(--lavender-light));
    color: var(--text-primary) !important;
    transform: translateY(-1px);
}

.navbar .nav-link.active {
    background: linear-gradient(135deg, var(--candy-pink), var(--peach));
    color: #fff !important;
    font-weight: 700;
    box-shadow: var(--shadow-btn);
}

.navbar-toggler {
    border: 2px solid var(--lavender-light);
    border-radius: var(--radius-md);
    padding: 0.35rem 0.55rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(179, 157, 219, 0.3);
    outline: none;
}

/* 購物車數量徽章 */
.navbar .cart-count-badge {
    position: absolute;
    top: 2px;
    right: -4px;
    background: var(--coral);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    box-shadow: 0 2px 8px rgba(255, 127, 127, 0.4);
    animation: badgeBounce 0.5s var(--transition-bounce);
}

@keyframes badgeBounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.25); }
    100% { transform: scale(1); }
}

/* 下拉選單 */
.dropdown-menu {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 0.5rem;
    background: var(--bg-white);
    overflow: hidden;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.2s var(--transition-smooth);
}

.dropdown-item:hover {
    background: linear-gradient(135deg, var(--butter-yellow-light), var(--peach-light));
    color: var(--text-primary);
    transform: translateX(3px);
}

.dropdown-divider {
    border-color: var(--border-light);
    margin: 0.3rem 0;
}

/* ========================================
   主內容區
   ======================================== */
main {
    min-height: 60vh;
    padding-top: 2rem !important;
    padding-bottom: 3rem !important;
}

/* ========================================
   卡片元件 - candy-card
   ======================================== */
.candy-card {
    background: var(--bg-white);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: transform 0.35s var(--transition-bounce), box-shadow 0.35s var(--transition-smooth);
    overflow: hidden;
}

.candy-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

.candy-card .card-img-top {
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
    object-fit: cover;
    height: 200px;
    transition: transform 0.4s var(--transition-bounce);
}

.candy-card:hover .card-img-top {
    transform: scale(1.04);
}

.card {
    background: var(--bg-white);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: transform 0.35s var(--transition-bounce), box-shadow 0.35s var(--transition-smooth);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-light);
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background: transparent;
    border-top: 1px solid var(--border-light);
}

/* ========================================
   按鈕元件 - candy-btn
   ======================================== */
.btn {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 600;
    border-radius: var(--radius-full);
    padding: 0.6rem 1.6rem;
    border: none;
    transition: all 0.3s var(--transition-bounce);
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

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

/* 主要按鈕 */
.btn-primary, .btn-primary:focus {
    background: linear-gradient(135deg, var(--candy-pink), var(--peach));
    color: #fff;
    box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--candy-pink-dark), var(--peach-dark));
    box-shadow: var(--shadow-btn-hover);
    transform: translateY(-2px);
    color: #fff;
}

/* 次要按鈕 */
.btn-secondary {
    background: linear-gradient(135deg, var(--lavender), var(--baby-blue));
    color: #fff;
    box-shadow: 0 4px 14px rgba(179, 157, 219, 0.25);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--lavender-dark), var(--baby-blue-dark));
    box-shadow: 0 6px 20px rgba(179, 157, 219, 0.35);
    transform: translateY(-2px);
    color: #fff;
}

/* 成功按鈕 */
.btn-success {
    background: linear-gradient(135deg, var(--mint-green), #5EC4A0);
    color: #fff;
    box-shadow: 0 4px 14px rgba(126, 200, 160, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--mint-green-dark), #4AA080);
    box-shadow: 0 6px 20px rgba(126, 200, 160, 0.4);
    transform: translateY(-2px);
    color: #fff;
}

/* 輪廓按鈕 */
.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--candy-pink);
    color: var(--candy-pink);
}

.btn-outline-primary:hover {
    background: linear-gradient(135deg, var(--candy-pink), var(--peach));
    border-color: transparent;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn);
}

.btn-outline-secondary {
    background: transparent;
    border: 2px solid var(--lavender);
    color: var(--lavender-dark);
}

.btn-outline-secondary:hover {
    background: linear-gradient(135deg, var(--lavender), var(--baby-blue));
    border-color: transparent;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(179, 157, 219, 0.25);
}

/* 危險按鈕 */
.btn-danger {
    background: linear-gradient(135deg, #FF6B6B, var(--coral));
    box-shadow: 0 4px 14px rgba(255, 107, 107, 0.25);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #E05555, #E06060);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.35);
    transform: translateY(-2px);
}

/* 淺色按鈕 */
.btn-light {
    background: var(--bg-white);
    color: var(--candy-pink);
    box-shadow: var(--shadow-card);
    border: 2px solid transparent;
}

.btn-light:hover {
    background: var(--bg-cream);
    border-color: var(--candy-pink-light);
    color: var(--candy-pink-dark);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 0.8rem 2.2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.4rem 1.2rem;
    font-size: 0.85rem;
}

/* ========================================
   英雄區（Hero Section）
   ======================================== */
.hero-section {
    background: linear-gradient(135deg, var(--candy-pink-light) 0%, var(--lavender-light) 30%, var(--baby-blue-light) 60%, var(--mint-green-light) 100%);
    padding: 4rem 0;
    border-radius: 0 0 60px 60px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    pointer-events: none;
}

.hero-section h1 {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    animation: heroFloatIn 0.8s var(--transition-bounce) both;
}

.hero-section .lead {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.15rem;
    font-weight: 500;
    animation: heroFloatIn 0.8s var(--transition-bounce) 0.15s both;
}

.hero-section .btn {
    animation: heroFloatIn 0.8s var(--transition-bounce) 0.3s both;
}

@keyframes heroFloatIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   頁尾
   ======================================== */
footer {
    background: linear-gradient(180deg, #4A3F6B 0%, #3D3460 100%) !important;
    padding-top: 3rem !important;
    position: relative;
    margin-top: 4rem !important;
}

footer::before {
    content: '';
    position: absolute;
    top: -30px;
    left: 0;
    right: 0;
    height: 60px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%234A3F6B' d='M0,30 C240,60 480,0 720,30 C960,60 1200,0 1440,30 L1440,60 L0,60 Z'%3E%3C/path%3E%3C/svg%3E") no-repeat bottom center;
    background-size: cover;
}

footer h5 {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 700;
    color: var(--butter-yellow);
    margin-bottom: 1rem;
}

footer p, footer a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

footer a:hover {
    color: var(--butter-yellow) !important;
    text-decoration: none;
}

footer ul li {
    margin-bottom: 0.4rem;
}

footer hr {
    border-color: rgba(255, 255, 255, 0.15);
}

/* ========================================
   表單元件
   ======================================== */
.form-control, .form-select {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0.65rem 1rem;
    font-family: 'Nunito', 'Noto Sans TC', sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s var(--transition-smooth);
    background: var(--bg-white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--candy-pink);
    box-shadow: 0 0 0 4px rgba(255, 107, 138, 0.12);
    outline: none;
}

.form-label {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.form-check-input:checked {
    background-color: var(--candy-pink);
    border-color: var(--candy-pink);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(255, 107, 138, 0.15);
}

/* ========================================
   提示訊息
   ======================================== */
.alert {
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-card);
}

.alert-success {
    background: linear-gradient(135deg, var(--mint-green-light), #D4F0E4);
    color: var(--mint-green-dark);
    border-left: 4px solid var(--mint-green);
}

.alert-danger {
    background: linear-gradient(135deg, #FFD4D4, #FFE8E8);
    color: #C0392B;
    border-left: 4px solid var(--coral);
}

.alert-dismissible .btn-close {
    filter: opacity(0.5);
}

/* ========================================
   表格
   ======================================== */
.table {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.table thead {
    background: linear-gradient(135deg, var(--lavender-light), var(--baby-blue-light));
}

.table thead th {
    font-family: 'Fredoka', 'Noto Sans TC', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: none;
    padding: 1rem;
}

.table tbody td {
    padding: 0.9rem 1rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background: var(--bg-cream);
}

/* ========================================
   列表群組
   ======================================== */
.list-group {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: none;
}

.list-group-item {
    border: none;
    border-bottom: 1px solid var(--border-light);
    padding: 0.85rem 1.25rem;
    font-weight: 500;
    transition: all 0.25s var(--transition-smooth);
    background: var(--bg-white);
}

.list-group-item:last-child {
    border-bottom: none;
}

.list-group-item:hover {
    background: linear-gradient(135deg, var(--butter-yellow-light), var(--peach-light));
    transform: translateX(4px);
}

.list-group-item.active {
    background: linear-gradient(135deg, var(--candy-pink), var(--peach));
    border: none;
    box-shadow: var(--shadow-btn);
}

/* ========================================
   價格標籤
   ======================================== */
.price-tag {
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: var(--candy-pink);
    font-size: 1.15rem;
}

/* ========================================
   通用輔助類別
   ======================================== */
.cursor-pointer {
    cursor: pointer;
}

.img-thumbnail-preview {
    max-height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

/* 標題裝飾底線 */
.heading-underline {
    display: inline-block;
    position: relative;
    padding-bottom: 0.3rem;
}

.heading-underline::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--candy-pink), var(--lavender), var(--baby-blue));
    border-radius: 2px;
}

/* 可愛分隔線 */
.cute-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin: 2rem 0;
}

.cute-divider::before,
.cute-divider::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
    max-width: 120px;
}

.cute-divider span {
    font-size: 1.5rem;
}

/* ========================================
   響應式調整
   ======================================== */
@media (max-width: 768px) {
    .hero-section {
        border-radius: 0 0 40px 40px;
        padding: 2.5rem 0;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-section .lead {
        font-size: 1rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    footer {
        padding-top: 2rem !important;
    }

    footer h5 {
        font-size: 1.1rem;
    }

    .btn-lg {
        padding: 0.65rem 1.6rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        border-radius: 0 0 30px 30px;
        padding: 2rem 0;
    }

    .hero-section h1 {
        font-size: 1.6rem;
    }

    .card-img-top {
        height: 150px;
    }

    .candy-card .card-img-top {
        height: 150px;
    }
}

/* ========================================
   頁面載入動畫
   ======================================== */
.fade-in-up {
    animation: fadeInUp 0.6s var(--transition-bounce) both;
}

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

/* 交錯動畫延遲 */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }
.stagger-6 { animation-delay: 0.3s; }
.stagger-7 { animation-delay: 0.35s; }
.stagger-8 { animation-delay: 0.4s; }

/* ========================================
   滾動條美化
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-cream);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--candy-pink-light), var(--lavender-light));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--candy-pink), var(--lavender));
}

/* ========================================
   圖片載入失敗替代
   ======================================== */
.img-placeholder {
    background: linear-gradient(135deg, var(--butter-yellow-light), var(--peach-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    min-height: 180px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ========================================
   空狀態（empty state）
   ======================================== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h5 {
    color: var(--text-secondary);
    font-family: 'Fredoka', sans-serif;
}

/* ========================================
   Pagination 分頁
   ======================================== */
.pagination {
    gap: 0.3rem;
}

.page-link {
    border: none;
    border-radius: var(--radius-sm) !important;
    padding: 0.5rem 1rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.25s var(--transition-bounce);
}

.page-link:hover {
    background: linear-gradient(135deg, var(--butter-yellow-light), var(--peach-light));
    color: var(--text-primary);
    transform: translateY(-2px);
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--candy-pink), var(--peach));
    color: #fff;
    box-shadow: var(--shadow-btn);