/* ═══════════════════════════════════════════════════════════
   BrazingAnalyzerPro v1.3.2 — Global Stylesheet
   设计语言: 现代扁平 + 细腻阴影 + 微交互动画
   ═══════════════════════════════════════════════════════════ */

/* ── 设计变量 ──────────────────────────────────────── */
:root {
    /* 主色 */
    --brand-primary: #1B4F72;
    --brand-primary-dark: #0D2F47;
    --brand-primary-light: #2E86C1;
    --brand-accent: #3498DB;

    /* 语义色 */
    --success: #27AE60;
    --success-light: #D5F5E3;
    --warning: #F39C12;
    --warning-light: #FCF3CF;
    --danger: #E74C3C;
    --danger-light: #FADBD8;
    --info: #3498DB;
    --info-light: #D6EAF8;

    /* 中性色 */
    --gray-50: #F8F9FB;
    --gray-100: #F1F3F6;
    --gray-200: #E5E8EC;
    --gray-300: #D1D5DA;
    --gray-400: #9AA0A6;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* 背景 */
    --bg-body: #F0F2F5;
    --bg-card: #FFFFFF;
    --bg-subtle: #FAFBFC;

    /* 阴影 */
    --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.05);
    --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
    --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08), 0 2px 4px rgba(16, 24, 40, 0.04);
    --shadow-lg: 0 12px 24px rgba(16, 24, 40, 0.10), 0 4px 8px rgba(16, 24, 40, 0.05);
    --shadow-xl: 0 20px 40px rgba(16, 24, 40, 0.12);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* 过渡 */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── 全局重置 ──────────────────────────────────────── */
body {
    /* 字体栈: 苹果 → Windows → 通用中文 → 西文 fallback
       Windows 上 "Microsoft YaHei UI" 优先于 "PingFang SC" */
    font-family: -apple-system, BlinkMacSystemFont,
                 "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei",
                 "PingFang SC", "Hiragino Sans GB",
                 "Source Han Sans SC", "Noto Sans CJK SC",
                 "WenQuanYi Micro Hei",
                 "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: linear-gradient(180deg, #EEF2F7 0%, #F0F2F5 100%);
    color: var(--gray-800);
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--gray-900);
    font-weight: 600;
    letter-spacing: -0.01em;
}

h3 { font-size: 1.5rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.92rem; }

.text-muted {
    color: var(--gray-500) !important;
}

/* ── 主内容区 ──────────────────────────────────────── */
.main-content {
    margin-top: 0;
    min-height: calc(100vh - 58px);
    background: transparent;
    animation: pageSlideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ── 顶部导航栏 ──────────────────────────────────── */
.navbar {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%) !important;
    box-shadow: var(--shadow-md);
    border: none;
    backdrop-filter: blur(8px);
}

.navbar .navbar-brand, .navbar .fw-bold {
    color: #FFFFFF !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.navbar .text-light {
    color: rgba(255, 255, 255, 0.85) !important;
}

.navbar .form-control, .navbar .Select-control, .navbar input {
    background: rgba(255, 255, 255, 0.15) !important;
    border: 1px solid rgba(255, 255, 255, 0.25) !important;
    color: #FFFFFF !important;
    border-radius: var(--radius-sm) !important;
    transition: all var(--transition-base);
}

.navbar .form-control:focus, .navbar input:focus {
    background: rgba(255, 255, 255, 0.25) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15) !important;
}

.navbar .form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.navbar .btn-light {
    background: rgba(255, 255, 255, 0.2) !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    color: #FFFFFF !important;
    transition: all var(--transition-base);
}

.navbar .btn-light:hover {
    background: rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-1px);
}

/* 告警徽章 (导航栏) */
.navbar .badge {
    font-size: 0.7rem;
    padding: 0.25em 0.5em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* ── 侧边栏 ──────────────────────────────────────── */
.sidebar {
    background: var(--bg-card) !important;
    border-right: 1px solid var(--gray-200) !important;
    box-shadow: 2px 0 8px rgba(16, 24, 40, 0.04);
    transition: all var(--transition-slow);
}

.sidebar-link {
    position: relative;
    color: var(--gray-600) !important;
    transition: all var(--transition-base) !important;
    font-weight: 500 !important;
    overflow: hidden;
}

.sidebar-link:hover {
    background: var(--gray-50) !important;
    color: var(--brand-primary) !important;
    transform: translateX(2px);
}

.sidebar-link.active,
.sidebar-link[class*="active"] {
    background: linear-gradient(90deg,
        rgba(46, 134, 193, 0.12) 0%,
        rgba(46, 134, 193, 0.04) 100%) !important;
    color: var(--brand-primary) !important;
    font-weight: 600 !important;
}

.sidebar-link.active::before,
.sidebar-link[class*="active"]::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--brand-accent);
    border-radius: 0 3px 3px 0;
}

.sidebar-link i {
    width: 20px;
    text-align: center;
    transition: transform var(--transition-base);
}

.sidebar-link:hover i {
    transform: scale(1.1);
}

/* ── 卡片 ──────────────────────────────────────────── */
.card {
    border: none !important;
    border-radius: var(--radius-md) !important;
    background: var(--bg-card) !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all var(--transition-base);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-2px);
}

.card-header {
    background: var(--bg-subtle) !important;
    border-bottom: 1px solid var(--gray-200) !important;
    font-weight: 600;
    color: var(--gray-800);
    padding: 0.85rem 1.1rem !important;
}

.card-body {
    padding: 1.2rem !important;
}

/* KPI 卡片特殊样式 */
.card.shadow-sm {
    position: relative;
    overflow: hidden;
}

.card.shadow-sm::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-accent), var(--brand-primary-light));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card.shadow-sm:hover::before {
    opacity: 1;
}

/* KPI 卡片内部 H3 数值 */
.card-body h3 {
    font-size: 1.75rem !important;
    font-weight: 700 !important;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem !important;
    line-height: 1.1;
}

/* ── Tab 导航 ──────────────────────────────────────── */
.nav-tabs {
    border-bottom: 2px solid var(--gray-200) !important;
    margin-bottom: 0;
}

.nav-tabs .nav-link {
    color: var(--gray-500) !important;
    background: transparent !important;
    border: none !important;
    padding: 0.75rem 1.25rem !important;
    font-weight: 500 !important;
    font-size: 0.92rem;
    position: relative;
    transition: all var(--transition-base);
}

.nav-tabs .nav-link:hover {
    color: var(--brand-primary) !important;
    background: var(--gray-50) !important;
    border: none !important;
}

.nav-tabs .nav-link.active {
    color: var(--brand-primary) !important;
    background: transparent !important;
    font-weight: 600 !important;
    border: none !important;
}

.nav-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 1rem;
    right: 1rem;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
    border-radius: 3px 3px 0 0;
    animation: tabSlideIn 0.25s ease-out;
}

@keyframes tabSlideIn {
    from { transform: scaleX(0); }
    to   { transform: scaleX(1); }
}

/* ── 按钮 ──────────────────────────────────────────── */
.btn {
    font-weight: 500 !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.5rem 1rem !important;
    transition: all var(--transition-base) !important;
    border: 1px solid transparent !important;
    letter-spacing: 0.01em;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%) !important;
    border: none !important;
    color: white !important;
    box-shadow: 0 1px 3px rgba(27, 79, 114, 0.25) !important;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--brand-primary-dark) 0%, var(--brand-primary) 100%) !important;
    box-shadow: 0 4px 12px rgba(27, 79, 114, 0.35) !important;
}

.btn-success {
    background: linear-gradient(135deg, #229954 0%, var(--success) 100%) !important;
    border: none !important;
    color: white !important;
    box-shadow: 0 1px 3px rgba(39, 174, 96, 0.25) !important;
}

.btn-success:hover {
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.35) !important;
}

.btn-outline-primary {
    color: var(--brand-primary) !important;
    border-color: var(--brand-primary) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background: var(--brand-primary) !important;
    color: white !important;
}

.btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 1rem !important;
}

.btn-sm {
    padding: 0.25rem 0.75rem !important;
    font-size: 0.82rem !important;
}

/* ── 表单控件 ──────────────────────────────────────── */
.form-control, .form-select {
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.5rem 0.75rem !important;
    font-size: 0.9rem !important;
    transition: all var(--transition-base) !important;
    background: white;
}

.form-control:focus, .form-select:focus {
    border-color: var(--brand-accent) !important;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15) !important;
    outline: none;
}

.form-label, label {
    font-weight: 500 !important;
    color: var(--gray-700) !important;
    margin-bottom: 0.35rem !important;
}

/* ── 输入组 ──────────────────────────────────────── */
.input-group-text {
    background: var(--gray-50) !important;
    border-color: var(--gray-300) !important;
    color: var(--gray-500) !important;
}

/* ── 复选框 / 单选按钮 ────────────────────────────── */
.form-check-input {
    border-color: var(--gray-300) !important;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--brand-primary) !important;
    border-color: var(--brand-primary) !important;
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2) !important;
}

.form-check-label {
    cursor: pointer;
    transition: color var(--transition-fast);
}

.form-check-label:hover {
    color: var(--brand-primary);
}

/* ── 表格 ──────────────────────────────────────────── */
.table {
    font-size: 0.88rem;
    color: var(--gray-800);
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(180deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%) !important;
    color: white !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border: none !important;
    padding: 0.75rem 0.85rem !important;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table-hover tbody tr:hover {
    background: rgba(52, 152, 219, 0.05) !important;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--gray-50);
}

.table td {
    padding: 0.65rem 0.85rem !important;
    vertical-align: middle;
    border-top: 1px solid var(--gray-100) !important;
}

/* Dash DataTable */
.dash-table-container .dash-spreadsheet-container .dash-spreadsheet-inner th {
    background-color: var(--brand-primary) !important;
    color: white !important;
    font-weight: 600 !important;
    font-size: 0.8rem !important;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    padding: 10px 12px !important;
    border: none !important;
}

.dash-table-container .dash-spreadsheet-container .dash-spreadsheet-inner td {
    font-size: 0.82rem !important;
    padding: 8px 12px !important;
    border-bottom: 1px solid var(--gray-100) !important;
}

/* ── Accordion 手风琴 ────────────────────────────── */
.accordion-item {
    border: 1px solid var(--gray-200) !important;
    border-radius: var(--radius-sm) !important;
    margin-bottom: 0.5rem !important;
    overflow: hidden;
    background: var(--bg-card);
}

.accordion-button {
    background: var(--bg-subtle) !important;
    color: var(--gray-800) !important;
    font-weight: 500 !important;
    box-shadow: none !important;
    padding: 0.85rem 1.1rem !important;
    transition: all var(--transition-base);
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(90deg, rgba(52, 152, 219, 0.08), rgba(52, 152, 219, 0.02)) !important;
    color: var(--brand-primary) !important;
    font-weight: 600 !important;
    box-shadow: inset 0 -1px 0 var(--gray-200) !important;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15) !important;
}

.accordion-body {
    padding: 1rem 1.1rem !important;
    background: var(--bg-card);
}

/* ── Badge 徽章 ──────────────────────────────────── */
.badge {
    font-weight: 500 !important;
    padding: 0.35em 0.65em !important;
    border-radius: var(--radius-sm) !important;
    letter-spacing: 0.02em;
}

/* ── Alert 提示 ──────────────────────────────────── */
.alert {
    border: none !important;
    border-radius: var(--radius-sm) !important;
    border-left: 4px solid transparent !important;
    padding: 0.85rem 1.1rem !important;
    font-size: 0.9rem;
    box-shadow: var(--shadow-xs);
}

.alert-success {
    background: var(--success-light) !important;
    border-left-color: var(--success) !important;
    color: #186A3B !important;
}

.alert-warning {
    background: var(--warning-light) !important;
    border-left-color: var(--warning) !important;
    color: #7D6608 !important;
}

.alert-danger {
    background: var(--danger-light) !important;
    border-left-color: var(--danger) !important;
    color: #943126 !important;
}

.alert-info {
    background: var(--info-light) !important;
    border-left-color: var(--info) !important;
    color: #1B4F72 !important;
}

/* ── Section 分区标题 ────────────────────────────── */
h5.border-bottom,
h5.mt-4 {
    padding-bottom: 0.65rem !important;
    border-bottom: 2px solid var(--gray-200) !important;
    position: relative;
    color: var(--gray-800) !important;
    font-weight: 600 !important;
    margin-top: 1.75rem !important;
    margin-bottom: 1.25rem !important;
}

h5.border-bottom::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
}

/* ── 图表容器 ──────────────────────────────────────── */
.js-plotly-plot, .plotly {
    border-radius: var(--radius-sm);
}

/* ── 评级颜色 ──────────────────────────────────────── */
.grade-excellent {
    color: var(--success) !important;
    font-weight: 700 !important;
    text-shadow: 0 1px 0 rgba(39, 174, 96, 0.1);
}
.grade-good {
    color: #2979FF !important;
    font-weight: 700 !important;
}
.grade-acceptable {
    color: var(--warning) !important;
    font-weight: 700 !important;
}
.grade-poor {
    color: #FF5252 !important;
    font-weight: 700 !important;
}
.grade-critical {
    color: #D50000 !important;
    font-weight: 700 !important;
}

/* ── 温度参考线颜色 ──────────────────────────────── */
.temp-577 { color: #9B59B6; }
.temp-595 { color: #3498DB; }
.temp-600 { color: #E67E22; }
.temp-605 { color: #27AE60; }
.temp-610 { color: #2ECC71; }
.temp-615 { color: #E74C3C; }

/* ── 滚动条美化 ──────────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
    transition: background var(--transition-base);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ── 加载动画 ──────────────────────────────────────── */
._dash-loading {
    margin: 35vh auto;
    text-align: center;
    color: var(--brand-primary);
}

.dash-spinner {
    border-color: var(--gray-200) !important;
    border-top-color: var(--brand-accent) !important;
}

/* ── Dropdown (Plotly Dash) ──────────────────────── */
.Select-control {
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-sm) !important;
    transition: all var(--transition-base);
}

.Select-control:hover {
    border-color: var(--brand-accent) !important;
}

.is-focused .Select-control {
    border-color: var(--brand-accent) !important;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15) !important;
}

/* ── 文件选择器 (PAQ/MES) ────────────────────────── */
.file-picker-list {
    max-height: 260px;
    overflow-y: auto;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 8px;
    background: var(--bg-subtle);
}

.file-picker-list .form-check {
    padding: 6px 10px;
    margin: 0;
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.file-picker-list .form-check:hover {
    background: var(--gray-100);
}

/* ── ButtonGroup 快捷按钮 ────────────────────────── */
.btn-group .btn {
    border-radius: 0 !important;
    border: 1px solid var(--gray-300) !important;
    background: white !important;
    color: var(--gray-700) !important;
}

.btn-group .btn:hover {
    background: var(--gray-50) !important;
    border-color: var(--brand-primary) !important;
    color: var(--brand-primary) !important;
    transform: none;
    z-index: 2;
}

.btn-group .btn:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm) !important;
}

.btn-group .btn:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0 !important;
}

/* ── 响应式 ──────────────────────────────────────── */
@media (max-width: 992px) {
    .sidebar {
        width: 60px !important;
    }
    .sidebar-link span {
        display: none;
    }
    .sidebar-link i {
        margin: 0 auto !important;
    }
}

@media (max-width: 768px) {
    h3 { font-size: 1.25rem; }
    .card-body h3 { font-size: 1.45rem !important; }
    .card-body { padding: 0.9rem !important; }
}

/* ── Iframe 边框 ─────────────────────────────────── */
iframe {
    border: 1px solid var(--gray-200) !important;
    border-radius: var(--radius-sm) !important;
    box-shadow: var(--shadow-sm);
    background: white;
}

/* ── 数据空状态 ──────────────────────────────────── */
.text-center.py-5 {
    color: var(--gray-400);
}

.text-center.py-5 i {
    color: var(--gray-300);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.05));
}

/* ── 动画: 淡入 ──────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card, .alert, .accordion-item {
    animation: fadeIn 0.35s ease-out;
}