/* 全域基本樣式重設與變數 */
:root {
    --primary-color: #ff6b6b;
    --primary-hover: #fa5252;
    --secondary-color: #4dabf7;
    --bg-gradient: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-main: #2b2b2b;
    --text-muted: #868e96;
    --border-radius: 16px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
}

body {
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    padding: 40px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 應用程式容器 */
.app-container {
    width: 100%;
    max-width: 1200px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

/* 頂部 Header */
header {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(45deg, #ff6b6b, #f06595);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 300;
}

/* 主版面配置：左點餐，右看板 */
.main-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
}

@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
}

/* 區塊標題 */
.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #495057;
    border-left: 4px solid var(--primary-color);
    padding-left: 10px;
}

/* 表單群組 */
.form-group {
    margin-bottom: 30px;
}

/* 飲品選擇網格 */
.drink-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.drink-card {
    background: #ffffff;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.drink-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.drink-card.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #fff5f5 0%, #ffe3e3 100%);
    box-shadow: var(--shadow-md);
}

.drink-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    transition: var(--transition);
}

.drink-card:hover .drink-icon {
    transform: scale(1.15) rotate(5deg);
}

.drink-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: #343a40;
}

.drink-price {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* 選項行 (甜度、冰量) */
.option-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.option-btn {
    background: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: #495057;
}

.option-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: #fff5f5;
}

.option-btn.active {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(255, 107, 107, 0.3);
}

/* 數量與結帳區 */
.checkout-area {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-top: 40px;
}

.quantity-selector {
    display: flex;
    align-items: center;
    background: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.quantity-selector button {
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    color: #495057;
}

.quantity-selector button:hover {
    background-color: #f1f3f5;
    color: var(--primary-color);
}

#quantity-display {
    width: 40px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
}

.submit-btn {
    flex-grow: 1;
    background: linear-gradient(135deg, #ff6b6b 0%, #f06595 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.25);
    transition: var(--transition);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.35);
}

.submit-btn:active {
    transform: translateY(0);
}

/* 右側訂單看板 */
.dashboard-section {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 2px solid #f1f3f5;
    padding-bottom: 15px;
}

.dashboard-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #343a40;
}

.refresh-btn {
    background: none;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-muted);
}

.refresh-btn:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    background-color: #e7f5ff;
}

.order-list {
    flex-grow: 1;
    overflow-y: auto;
    max-height: 480px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 5px;
}

/* 訂單卡片項目 */
.order-item {
    background: #f8f9fa;
    border-left: 5px solid var(--secondary-color);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.order-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.order-drink-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #343a40;
}

.order-drink-title span.qty {
    background: #e7f5ff;
    color: var(--secondary-color);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-left: 8px;
    font-weight: 600;
}

.order-specs {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

.order-time {
    font-size: 0.75rem;
    color: #adb5bd;
}

.loading-spinner, .no-orders {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 0;
    font-weight: 400;
    font-size: 0.95rem;
}

/* 暱稱輸入框樣式 */
.nickname-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #dee2e6;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
    background-color: #ffffff;
    transition: var(--transition);
    outline: none;
}

.nickname-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.15);
}

.nickname-input::placeholder {
    color: #adb5bd;
}

/* 顯示暱稱的額外樣式 */
.order-nickname {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
    background: #fff5f5;
    padding: 2px 8px;
    border-radius: 6px;
    margin-right: 6px;
    display: inline-block;
}

/* 顯示點餐備註的樣式 */
.order-notes {
    font-size: 0.8rem;
    color: #e64980;
    background: #fff0f6;
    padding: 4px 10px;
    border-radius: 6px;
    margin-top: 6px;
    display: inline-block;
    border-left: 3px solid #e64980;
    font-weight: 500;
}

/* 顯示付款方式的樣式 */
.order-payment {
    font-size: 0.75rem;
    font-weight: 600;
    color: #1971c2;
    background: #e7f5ff;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    display: inline-block;
    vertical-align: middle;
}