/*
 * 全新视觉样式
 * @version 2.0
 * @author Kilo Code
 */

/* --- 1. 变量定义 --- */
:root {
    /* 颜色 */
    --bg-color: #f8f9fa;
    --body-bg-color: #ffffff;
    --text-color: #212529;
    --heading-color: #000;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.08);
    --primary-color: #0d6efd;
    --primary-color-light: #e6f0ff;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --stat-number-color: var(--primary-color);

    /* 过渡 */
    --transition-fast: all 0.2s ease-in-out;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* 字体 */
    --font-family-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --body-bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --heading-color: #ffffff;
        --border-color: #3a3a3a;
        --card-bg: #242424;
        --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        --card-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.3);
        --primary-color: #4dabf7;
        --primary-color-light: rgba(77, 171, 247, 0.15);
        --secondary-color: #868e96;
        --success-color: #40c057;
        --danger-color: #fa5252;
        --info-color: #3bc9db;
        --stat-number-color: var(--primary-color);
    }

    body {
        background-image: linear-gradient(160deg, #1a1a1a 0%, #1e1a24 100%);
    }

    .text-muted {
        color: var(--secondary-color) !important;
    }

    .form-label,
    .form-check-label {
        color: var(--text-color);
    }
    .page-link {
        background-color: var(--card-bg);
        color: var(--text-color);
        border-color: var(--border-color);
    }

    .page-link:hover {
        background-color: var(--bg-color);
        color: var(--primary-color);
    }

    .page-item.disabled .page-link {
        background-color: var(--bg-color);
        color: var(--secondary-color);
        border-color: var(--border-color);
    }
}

/* --- 2. 基础和全局样式 --- */
body {
    font-family: var(--font-family-sans-serif);
    background-color: var(--body-bg-color);
    color: var(--text-color);
    transition: var(--transition-fast);
    padding-top: 2rem;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 600;
}

.container {
    max-width: 1400px;
}

/* --- 3. 组件样式 --- */

/* 卡片 */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
    border-radius: 12px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.card-title {
    color: var(--heading-color);
}

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

.key-preview {
    background-color: var(--bg-color) !important;
    color: var(--text-color);
    border-radius: 6px;
    padding: 0.75rem !important;
    font-family: monospace;
    word-break: break-all;
    white-space: normal;
    max-height: 120px;
    overflow-y: auto;
}

/* 自定义密钥预览滚动条 */
.key-preview {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.key-preview::-webkit-scrollbar {
    width: 8px;
}

.key-preview::-webkit-scrollbar-track {
    background: transparent;
}

.key-preview::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
    border: 2px solid var(--bg-color);
}

.key-preview::-webkit-scrollbar-thumb:hover {
    background-color: var(--secondary-color);
}

.sold-card {
    opacity: 0.6;
    border-left: 5px solid var(--secondary-color);
}

.partial-sold-card {
    border-left: 5px solid var(--primary-color);
}

/* 按钮 */
.btn {
    transition: var(--transition-fast);
    border-radius: 8px;
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn-info, .btn-info:hover {
    color: #fff;
}

/* 导航栏 */
.nav-tabs {
    border-bottom: 1px solid var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--secondary-color);
    border: none;
    border-bottom: 3px solid transparent;
    transition: var(--transition-fast);
    padding: 0.75rem 1.25rem;
}

.nav-tabs .nav-link.active,
.nav-tabs .nav-item.show .nav-link {
    color: var(--primary-color);
    background-color: transparent;
    border-color: var(--primary-color);
    font-weight: 600;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* 表单 */
.form-control, .form-select {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(var(--primary-color), 0.25);
}

/* 弹窗 (Modal) */
.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.modal-header, .modal-footer {
    border-color: var(--border-color);
}

#key-table-view {
    max-height: 50vh;
    overflow-y: auto;
}

#key-list:has(> .col-12:only-child) {
    display: block;
    padding: 2rem 0;
}

/* 数据统计 */
.stats-box,
#filter-form {
    background-color: var(--bg-color) !important;
    border-radius: 12px;
}

.stat-number {
    color: var(--stat-number-color);
    font-weight: bold;
}

/* 通知 */
#notification {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    z-index: 9999;
    opacity: 0;
    transform: translate(-50%, -20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: none;
}

#notification.show {
    display: block;
    opacity: 1;
    transform: translate(-50%, 0);
}

#notification.success { background-color: var(--success-color); }
#notification.error { background-color: var(--danger-color); }
#notification.info { background-color: var(--info-color); }

/* 主要内容区域底部留白 */
#manage,
#order-mode {
    padding-bottom: 5rem;
}

.list-group-item {
    background-color: transparent;
    border: 1px solid var(--border-color);
    margin-bottom: -1px; /* 修复边框重叠 */
    transition: background-color 0.2s ease;
    color: var(--text-color);
}

.list-group-item:hover {
    background-color: var(--primary-color-light);
}

.copyable {
    cursor: pointer;
    transition: color 0.2s ease;
}

.copyable:hover {
    color: var(--primary-color);
}

.order-item-text {
    display: inline-block;
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: middle;
}

/* --- 4. 响应式设计 --- */
@media (max-width: 768px) {
    body {
        padding-top: 1rem;
    }
    .container {
        margin-top: 1rem !important;
    }
    #manage .d-flex.justify-content-between.align-items-center {
        flex-wrap: wrap;
        justify-content: center !important;
        gap: 1rem;
    }
    h1 {
        font-size: 1.75rem;
    }
    .nav-tabs .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    #filter-form .col-md-3,
    #filter-form .col-md-4,
    #filter-form .col-md-2 {
        margin-bottom: 1rem;
    }
    #order-mode .row > div {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 576px) {
    .modal-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .modal-footer .btn {
        margin: 0.25rem 0;
        width: 100%;
    }
    .modal-footer > div {
        display: flex;
        flex-direction: column;
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* --- 5. 粒子效果容器 --- */
.particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10000;
}

/* --- 6. 动画效果 --- */
.fade-out-content .modal-body,
.fade-out-content .modal-footer {
    transition: opacity 0.3s ease;
    opacity: 0;
}

.list-group-item.removing {
    animation: strike-out 0.5s ease-out forwards;
}

@keyframes strike-out {
    0% {
        opacity: 1;
        transform: translateX(0);
        text-decoration: none;
    }
    20% {
        text-decoration: line-through;
        text-decoration-color: var(--danger-color);
    }
    100% {
        opacity: 0;
        transform: translateX(50px);
        text-decoration: line-through;
        text-decoration-color: var(--danger-color);
    }
}

/* 登录页淡出效果 */
body.fade-out {
    opacity: 0;
    transition: opacity 0.5s ease-out;
}