/* ==========================================================================
   TEST BED - 住宿管理系統 全域變數與現代設計系統
   ========================================================================== */

:root {
    /* 核心色彩調色盤 (HSL系統，創造出諧和通透的視覺感) */
    --bg-darker: hsl(222, 47%, 7%);      /* 深邃底色 */
    --bg-dark: hsl(222, 47%, 10%);       /* 主要背景 */
    --bg-glass: rgba(15, 23, 42, 0.65);  /* 毛玻璃背景色 */
    --border-glass: rgba(255, 255, 255, 0.08); /* 柔和白色邊框 */
    --text-main: hsl(210, 40%, 98%);     /* 主文字色 */
    --text-muted: hsl(215, 20%, 65%);    /* 輔助/次要文字色 */
    --text-light: hsl(215, 20%, 80%);
    
    /* 房型與狀態顏色 (2人房藍色，3人房紫色) */
    --brand-2-person: hsl(200, 95%, 48%);
    --brand-2-person-glow: rgba(2, 132, 199, 0.25);
    --brand-3-person: hsl(262, 83%, 58%);
    --brand-3-person-glow: rgba(124, 58, 237, 0.25);

    /* 性別輔助色 */
    --gender-male: hsl(199, 89%, 48%);
    --gender-male-bg: rgba(2, 132, 199, 0.12);
    --gender-female: hsl(330, 81%, 60%);
    --gender-female-bg: rgba(219, 39, 119, 0.12);
    --gender-none: hsl(215, 16%, 47%);
    --gender-none-bg: rgba(71, 85, 105, 0.15);

    /* 語意狀態色 */
    --success: hsl(142, 71%, 45%);
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: hsl(37, 90%, 50%);
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: hsl(350, 89%, 60%);
    --danger-bg: rgba(239, 68, 68, 0.15);
    
    /* 字型與間距 */
    --font-sans: 'Outfit', 'Noto Sans TC', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.15);
}

/* ==========================================================================
   全域樣式重設 (Reset & Global)
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-darker);
    color: var(--text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225,39%,30%,0.15) 0, transparent 50%),
        radial-gradient(at 100% 100%, hsla(263,40%,25%,0.1) 0, transparent 50%);
    background-attachment: fixed;
}

/* 自訂捲軸樣式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
    background: hsl(222, 20%, 25%);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: hsl(222, 20%, 35%);
}

/* ==========================================================================
   頂部導覽列 (Header Styles)
   ========================================================================== */

.app-header {
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--brand-2-person), var(--brand-3-person));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px rgba(124, 58, 237, 0.4));
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
}

.status-indicator.online {
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.25);
    background: rgba(16, 185, 129, 0.05);
}

.status-indicator.offline {
    color: var(--warning);
    border-color: rgba(245, 158, 11, 0.25);
    background: rgba(245, 158, 11, 0.05);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
    box-shadow: 0 0 8px currentColor;
}

.date-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ==========================================================================
   按鈕樣式 (Button Styles)
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-bounce);
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-3-person), hsl(262, 83%, 48%));
    color: #fff;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4), 0 0 25px rgba(124, 58, 237, 0.3);
    filter: brightness(1.1);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border-color: var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-text {
    background: transparent;
    color: var(--text-muted);
}

.btn-text:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ==========================================================================
   系統主容器佈局 (Main App Container Layout)
   ========================================================================== */

.app-container {
    flex: 1;
    display: flex;
    padding: 2rem;
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* 側邊欄 */
.app-sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-section {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 數據看板網格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
}

.stat-card.occupied .stat-value {
    color: var(--brand-3-person);
    text-shadow: 0 0 10px rgba(124, 58, 237, 0.2);
}

.stat-card.empty .stat-value {
    color: var(--brand-2-person);
    text-shadow: 0 0 10px rgba(2, 132, 199, 0.2);
}

/* 表單欄位 */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    letter-spacing: 0.5px;
}

.input-with-icon {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    opacity: 0.6;
}

.app-sidebar input[type="text"],
.app-sidebar select,
.modal-card input,
.modal-card select {
    width: 100%;
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 0.65rem 0.75rem;
    color: var(--text-main);
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition-smooth);
    font-family: var(--font-sans);
}

.input-with-icon input {
    padding-left: 2.2rem;
}

.app-sidebar input[type="text"]:focus,
.app-sidebar select:focus,
.modal-card input:focus,
.modal-card select:focus {
    border-color: var(--brand-3-person);
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.2);
    background-color: rgba(15, 23, 42, 0.8);
}

/* 操作指南 */
.info-box {
    background: rgba(124, 58, 237, 0.03);
    border: 1px solid rgba(124, 58, 237, 0.15);
}

.info-box h4 {
    font-size: 0.85rem;
    color: var(--brand-3-person);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.info-box ul {
    list-style: none;
}

.info-box li {
    font-size: 0.75rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 0.75rem;
}

.info-box li::before {
    content: "•";
    color: var(--brand-3-person);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.info-box li span {
    font-weight: bold;
    color: var(--text-main);
}

/* ==========================================================================
   主要房況看板 (Main Grid Area)
   ========================================================================== */

.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.room-grid-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.legend {
    display: flex;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    display: inline-block;
}

.badge-2-person {
    background: var(--brand-2-person);
    box-shadow: 0 0 6px var(--brand-2-person);
}

.badge-3-person {
    background: var(--brand-3-person);
    box-shadow: 0 0 6px var(--brand-3-person);
}

/* 房間網格容器 */
.room-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    align-content: start;
}

/* Loading 狀態 */
.loading-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 0;
    gap: 1rem;
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid var(--brand-3-person);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   房間卡片樣式 (Room Card Styles)
   ========================================================================== */

.room-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-bounce);
    display: flex;
    flex-direction: column;
}

.room-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.8);
}

/* 卡片房型專屬漸層與陰影 */
.room-card.type-2 {
    border-top: 3px solid var(--brand-2-person);
}
.room-card.type-2:hover {
    border-color: var(--brand-2-person);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(2, 132, 199, 0.08);
}

.room-card.type-3 {
    border-top: 3px solid var(--brand-3-person);
}
.room-card.type-3:hover {
    border-color: var(--brand-3-person);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(124, 58, 237, 0.08);
}

/* 房間頭部 */
.room-card-header {
    padding: 1rem 1.25rem 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.room-no {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    font-family: 'Outfit', sans-serif;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 房型標籤 */
.room-type-tag {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

.room-card.type-2 .room-type-tag {
    background: rgba(2, 132, 199, 0.15);
    color: var(--brand-2-person);
    border: 1px solid rgba(2, 132, 199, 0.3);
}

.room-card.type-3 .room-type-tag {
    background: rgba(124, 58, 237, 0.15);
    color: var(--brand-3-person);
    border: 1px solid rgba(124, 58, 237, 0.3);
}

/* 房內性別標記 */
.room-gender-tag {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.room-gender-tag.male {
    background: var(--gender-male-bg);
    color: var(--gender-male);
    border: 1px solid rgba(2, 132, 199, 0.2);
}

.room-gender-tag.female {
    background: var(--gender-female-bg);
    color: var(--gender-female);
    border: 1px solid rgba(219, 39, 119, 0.2);
}

.room-gender-tag.unlocked {
    background: var(--gender-none-bg);
    color: var(--text-muted);
}

/* 房間床位列區域 */
.room-card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

/* 床位行 */
.bed-row {
    border-radius: 10px;
    transition: var(--transition-smooth);
}

/* 空床位樣式 */
.bed-row.empty {
    border: 1px dashed rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    padding: 0.65rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.bed-row.empty:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.03);
}

.room-card.type-2 .bed-row.empty:hover {
    border-color: var(--brand-2-person);
    box-shadow: 0 0 10px rgba(2, 132, 199, 0.1);
}

.room-card.type-3 .bed-row.empty:hover {
    border-color: var(--brand-3-person);
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.1);
}

.bed-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-light);
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Outfit', sans-serif;
}

.bed-row.empty .bed-status-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.btn-assign-bed-hint {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0;
    transition: var(--transition-bounce);
    transform: scale(0.8);
}

.bed-row.empty:hover .btn-assign-bed-hint {
    opacity: 1;
    transform: scale(1);
    color: var(--text-main);
}

/* 已佔用床位樣式 */
.bed-row.occupied {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.bed-row.occupied:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.guest-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.guest-identity {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.guest-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
}

/* 性別小標籤 */
.gender-badge {
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
}

.gender-badge.male {
    background: var(--gender-male-bg);
    color: var(--gender-male);
}

.gender-badge.female {
    background: var(--gender-female-bg);
    color: var(--gender-female);
}

/* 退房按鈕 */
.btn-checkout {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.btn-checkout:hover {
    background: var(--danger-bg);
    color: var(--danger);
    transform: scale(1.1);
}

/* 學員詳細資料 */
.guest-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.3rem 0.5rem;
    padding-top: 0.2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.guest-meta-item {
    font-size: 0.7rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.guest-meta-item span {
    color: var(--text-light);
    font-weight: 500;
}

.guest-dates {
    grid-column: 1 / -1;
    font-size: 0.68rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.guest-dates span {
    color: var(--warning);
    font-weight: 600;
}

/* ==========================================================================
   彈窗遮罩與卡片 (Modal Overlay & Card)
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 8, 16, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: rgba(20, 27, 45, 0.85);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    width: 500px;
    max-width: 90%;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(124, 58, 237, 0.05);
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition-bounce);
    display: flex;
    flex-direction: column;
}

.modal-card.modal-lg {
    width: 800px;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-close-modal:hover {
    color: #fff;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: 70vh;
}

.modal-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background: rgba(0, 0, 0, 0.1);
}

/* 警告框 */
.warning-box {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    margin-bottom: 1.25rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

.warning-icon {
    font-size: 1.2rem;
    color: var(--danger);
    line-height: 1;
}

.warning-text {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
}

.warning-text strong {
    color: var(--danger);
    font-weight: 700;
}

.hidden {
    display: none !important;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* 表單排版架構 */
.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.col-6 {
    flex: 1;
}

/* ==========================================================================
   清房預覽表格樣式 (Cleaning Table Styles)
   ========================================================================== */

.cleaning-filter-row {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.25rem;
}

.input-with-action {
    display: flex;
    gap: 0.75rem;
}

.input-with-action input {
    flex: 1;
}

.cleaning-preview-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.preview-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
}

.table-wrapper {
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid var(--border-glass);
    border-radius: 10px;
    background: rgba(10, 15, 30, 0.4);
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    text-align: left;
}

.preview-table th,
.preview-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.preview-table th {
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-muted);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 5;
}

.preview-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.empty-preview {
    text-align: center;
    padding: 2.5rem 0 !important;
    color: var(--text-muted);
    font-style: italic;
}

/* 備註與標籤 */
.clean-tag-clean {
    color: var(--brand-3-person);
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.25);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    display: inline-block;
}

.clean-tag-thorough {
    color: var(--warning);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    display: inline-block;
}

/* ==========================================================================
   Toast 訊息提示系統 (Toast Notification Styles)
   ========================================================================== */

.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 2000;
}

.toast {
    background: rgba(20, 27, 45, 0.9);
    border: 1px solid var(--border-glass);
    color: #fff;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    box-shadow: var(--shadow-premium), 0 0 15px rgba(0, 0, 0, 0.3);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 320px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateX(120%);
    opacity: 0;
    transition: var(--transition-bounce);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-success {
    border-left: 4px solid var(--success);
}
.toast-info {
    border-left: 4px solid var(--brand-2-person);
}
.toast-error {
    border-left: 4px solid var(--danger);
}

.toast-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.toast-success .toast-icon { color: var(--success); }
.toast-info .toast-icon { color: var(--brand-2-person); }
.toast-error .toast-icon { color: var(--danger); }

.toast-message {
    flex: 1;
    font-weight: 500;
    line-height: 1.4;
}

/* ==========================================================================
   響應式排版 (Responsive Design)
   ========================================================================== */

@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
        padding: 1rem;
    }
    
    .app-sidebar {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        text-align: center;
    }
    
    .header-actions {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0.75rem;
    }
}