/* ========================================
   公共样式增强 - gift_verification_system
   玻璃拟态 (Glassmorphism) 设计风格
   ======================================== */

/* CSS 变量 - 玻璃拟态主题 */
:root {
    /* 渐变背景 - 更加柔和时尚 */
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #6B8DD6 100%);
    --bg-glass: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
    --bg-glass-dark: linear-gradient(135deg, rgba(30,30,50,0.85) 0%, rgba(30,30,50,0.7) 100%);

    /* 玻璃拟态配色 */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-bg-hover: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);

    /* 文字颜色 */
    --text-primary: #2D3748;
    --text-secondary: #718096;
    --text-light: #fff;

    /* 卡片 */
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

    /* 输入框 */
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-border: rgba(255, 255, 255, 0.5);

    /* 按钮渐变 */
    --btn-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --btn-gradient-hover: linear-gradient(135deg, #5a6fd6 0%, #6a4190 100%);

    /* 状态颜色 */
    --success-bg: rgba(72, 187, 120, 0.2);
    --success-border: #48BB78;
    --warning-bg: rgba(237, 137, 54, 0.2);
    --warning-border: #ED8936;
    --danger-bg: rgba(245, 101, 101, 0.2);
    --danger-border: #F56565;
    --info-bg: rgba(66, 153, 225, 0.2);
    --info-border: #4299E1;

    /* 动画 */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 后台顶部导航 - 暖色统一风格 */
.navbar.navbar-dark.bg-primary {
    background:
        linear-gradient(180deg, rgba(255, 250, 242, 0.96) 0%, rgba(255, 240, 216, 0.9) 100%) !important;
    border-bottom: 1px solid rgba(213, 177, 129, 0.52);
    box-shadow: 0 8px 22px rgba(111, 71, 34, 0.1) !important;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 6000;
    overflow: visible;
}

.navbar .navbar-brand {
    color: #3d2a1c !important;
    font-weight: 800;
    letter-spacing: 0;
    text-shadow: none;
}

.navbar .navbar-nav {
    gap: 4px;
    align-items: center;
    overflow: visible;
    scrollbar-width: none;
}

.navbar .navbar-nav::-webkit-scrollbar {
    display: none;
}

.navbar .dropdown-menu {
    z-index: 7000 !important;
}

.navbar .nav-user-menu .dropdown-menu {
    position: absolute !important;
    top: 100%;
    right: 0;
    left: auto;
}

.navbar-dark .navbar-nav .nav-link {
    color: #8b5e34;
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 700;
    white-space: nowrap;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: #6b3d14;
    background: rgba(194, 122, 50, 0.1);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: #fffaf2 !important;
    background: linear-gradient(135deg, #c27a32 0%, #9e6635 100%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.34), 0 6px 14px rgba(158, 102, 53, 0.18);
}

[data-theme="dark"] {
    --bg-primary: #1a1a2e;
    --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --text-primary: #e0e0e0;
    --text-secondary: #aaa;
    --card-bg: #1e1e2f;
    --card-shadow: 0 10px 30px rgba(0,0,0,0.5);
    --input-bg: #2d2d44;
    --border-color: #444;
    --table-bg: #1e1e2f;
    --modal-bg: #1e1e2f;
}

/* 过渡动画 */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.slide-up {
    animation: slideUp 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* 加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
}

[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg, #2d2d44 25%, #3d3d54 50%, #2d2d44 75%);
    background-size: 200% 100%;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 图片预览模窗 */
.image-preview-modal .modal-dialog {
    max-width: 90vw;
    max-height: 90vh;
}

.image-preview-modal .modal-content {
    background: transparent;
    border: none;
}

.image-preview-modal .modal-body {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview-modal .preview-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.image-preview-modal .btn-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    padding: 10px;
    z-index: 1050;
}

.image-preview-modal .btn-close:hover {
    background: #fff;
}

/* 可点击预览的图片 */
.clickable-image {
    cursor: zoom-in;
    transition: transform 0.2s ease;
}

.clickable-image:hover {
    transform: scale(1.02);
}

/* 深色模式切换按钮 */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-gradient);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: transform 0.3s;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* 打印样式 */
@media print {
    body {
        background: white !important;
        color: black !important;
    }

    .no-print,
    .navbar,
    .theme-toggle,
    .btn,
    .modal,
    form,
    .loading-overlay {
        display: none !important;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }

    .card-header {
        background: #f5f5f5 !important;
        color: black !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .table {
        font-size: 12px;
    }

    .table th,
    .table td {
        padding: 4px 8px;
        border: 1px solid #ddd !important;
    }

    .stats-card {
        background: #f5f5f5 !important;
        color: black !important;
        border: 1px solid #ddd !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .page-break {
        page-break-after: always;
    }

    .print-full-width {
        width: 100% !important;
        max-width: none !important;
    }

    a[href]:after {
        content: none !important;
    }
}

/* 响应式优化 */
@media (min-width: 768px) {
    .container.main-container {
        max-width: 900px;
    }

    .admin-container {
        max-width: 1200px;
    }
}

@media (min-width: 992px) {
    .container.main-container {
        max-width: 1100px;
    }
}

/* 按钮加载状态 */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Toast 提示 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
}

.toast-notification {
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    margin-bottom: 10px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 深色模式覆盖 */
[data-theme="dark"] body {
    background: var(--bg-primary);
}

[data-theme="dark"] .card {
    background: var(--card-bg);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background: var(--input-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .table {
    color: var(--text-primary);
}

[data-theme="dark"] .table-container,
[data-theme="dark"] .current-stats {
    background: var(--card-bg);
}

[data-theme="dark"] .text-muted {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .bg-light {
    background: var(--input-bg) !important;
}

/* 进度条动画 */
.progress-animated .progress-bar {
    animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
    0% { opacity: 0.8; }
    50% { opacity: 1; }
    100% { opacity: 0.8; }
}

/* ========================================
   玻璃拟态 (Glassmorphism) 样式
   ======================================== */

/* 玻璃卡片 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.25);
    transform: translateY(-2px);
}

/* 玻璃按钮 */
.glass-btn {
    background: var(--btn-gradient);
    border: none;
    border-radius: 12px;
    color: white;
    padding: 12px 24px;
    font-weight: 600;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.glass-btn:hover {
    background: var(--btn-gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

/* 玻璃输入框 */
.glass-input {
    background: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: 12px;
    padding: 12px 16px;
    transition: var(--transition-smooth);
}

.glass-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
    outline: none;
}

/* 玻璃模态框 */
.glass-modal .modal-content {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

/* 渐变背景容器 */
.gradient-bg {
    background: var(--bg-gradient);
    min-height: 100vh;
}

/* 玻璃导航栏 */
.glass-nav {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

/* 状态徽章 - 玻璃风格 */
.badge-glass {
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 500;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.badge-pending {
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: #C05621;
}

.badge-approved {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: #276749;
}

.badge-written-off {
    background: var(--info-bg);
    border: 1px solid var(--info-border);
    color: #2C5282;
}

.badge-rejected {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: #C53030;
}

/* 表格玻璃风格 */
.glass-table {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 16px;
    overflow: hidden;
}

.glass-table thead {
    background: rgba(102, 126, 234, 0.1);
}

.glass-table th {
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

.glass-table tbody tr {
    transition: var(--transition-smooth);
}

.glass-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* 页面加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* 背景装饰 - 模糊圆球 */
.bg-decoration {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.5;
}

.bg-decoration-1 {
    width: 400px;
    height: 400px;
    background: #667eea;
    top: -100px;
    left: -100px;
}

.bg-decoration-2 {
    width: 300px;
    height: 300px;
    background: #764ba2;
    bottom: -50px;
    right: -50px;
}

.bg-decoration-3 {
    width: 200px;
    height: 200px;
    background: #6B8DD6;
    top: 50%;
    right: 10%;
}

/* 选中状态 */
.room-btn.selected,
.room-btn.active {
    background: var(--btn-gradient) !important;
    color: white !important;
    border-color: transparent !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transform: scale(1.05);
}

/* 表单标签 */
.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

/* 序列号圆圈 */
.seq-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--btn-gradient);
    color: white;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 600;
    margin-right: 8px;
}

/* 提示文字 */
.hint-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* 图片预览 */
.preview-image {
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition-smooth);
}

.preview-image:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.example-image {
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.example-image:hover {
    transform: scale(1.05);
    border-color: rgba(102, 126, 234, 0.5);
}

/* 弹框图片 */
#imageModal .modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: none;
}

#imageModal .modal-body {
    padding: 20px;
}

/* 统计卡片 */
.stats-card {
    background: var(--btn-gradient);
    border-radius: 16px;
    padding: 20px;
    color: white;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
}

.stats-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .glass-card {
        border-radius: 16px;
        margin: 0 10px;
    }

    .glass-btn {
        padding: 10px 20px;
    }
}