/* ================================================
   公共样式 - 铁路与新能源时空耦合不平衡谐波追踪系统
   Author: linxuan
   Version: 1.0.0
   ================================================ */

/* ---- CSS 变量 (主题色板) ---- */
:root {
    --bg-primary:       #040e22;
    --bg-secondary:     #071428;
    --bg-card:          rgba(10, 20, 58, 0.70);
    --bg-card-hover:    rgba(14, 28, 72, 0.88);

    --color-primary:    #22d3ee;
    --color-primary-dim:#0e7490;
    --color-secondary:  #818cf8;
    --color-accent:     #fbbf24;
    --color-success:    #10b981;
    --color-warning:    #f59e0b;
    --color-danger:     #f43f5e;

    --text-primary:     #f1f7ff;
    --text-secondary:   #93c5e8;
    --text-muted:       #4e6a90;

    --border-color:     rgba(34, 211, 238, 0.18);
    --border-bright:    rgba(34, 211, 238, 0.50);

    --glow-primary:     0 0 20px rgba(34, 211, 238, 0.45);
    --glow-secondary:   0 0 24px rgba(129, 140, 248, 0.38);
    --glow-danger:      0 0 18px rgba(244, 63, 94, 0.42);

    --sidebar-width:    240px;
    --header-height:    64px;

    --font-main:        'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-mono:        'Consolas', 'Courier New', monospace;

    --radius-sm:        6px;
    --radius-md:        10px;
    --radius-lg:        16px;

    --transition-fast:  0.18s ease;
    --transition-mid:   0.32s ease;
}

/* ---- 基础重置 ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background:
        radial-gradient(ellipse 88% 65% at 78% -8%,  rgba(99, 102, 241, 0.22) 0%, transparent 55%),
        radial-gradient(ellipse 65% 52% at -8% 98%,  rgba(6,  182, 212, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 50% 52%,  rgba(14, 116, 144, 0.07) 0%, transparent 70%),
        #040e22;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: #fff;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

input, button, select, textarea {
    font-family: inherit;
    outline: none;
}

/* ---- 滚动条美化 ---- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-dim);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ---- 文字选中 ---- */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: #fff;
}

/* ---- 通用按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: none;
    letter-spacing: 0.3px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #4338ca 0%, #0ea5e9 55%, #22d3ee 100%);
    color: #fff;
    border-color: rgba(129, 140, 248, 0.4);
    box-shadow: 0 0 18px rgba(67, 56, 202, 0.35), 0 0 10px rgba(34, 211, 238, 0.18);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #38bdf8 55%, #22d3ee 100%);
    box-shadow: 0 0 28px rgba(79, 70, 229, 0.55), 0 0 20px rgba(34, 211, 238, 0.28);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--color-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: rgba(0, 212, 255, 0.08);
}

.btn-danger {
    background: rgba(255, 59, 92, 0.12);
    color: var(--color-danger);
    border-color: rgba(255, 59, 92, 0.35);
}

.btn-danger:hover {
    background: rgba(255, 59, 92, 0.25);
    box-shadow: var(--glow-danger);
}

.btn:active { transform: scale(0.97); }
.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* ---- 徽章 / 标签 ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.4px;
}

.badge-primary   { background: rgba(0,212,255,0.15); color: var(--color-primary); border: 1px solid rgba(0,212,255,0.3); }
.badge-success   { background: rgba(0,229,122,0.12); color: var(--color-success);  border: 1px solid rgba(0,229,122,0.3); }
.badge-warning   { background: rgba(255,215,0,0.12); color: var(--color-warning);  border: 1px solid rgba(255,215,0,0.3); }
.badge-danger    { background: rgba(255,59,92,0.12);  color: var(--color-danger);  border: 1px solid rgba(255,59,92,0.3); }

/* ---- 卡片 ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

/* ---- 分割线 ---- */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 16px 0;
}

/* ---- 加载动画 ---- */
.loading-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0,212,255,0.2);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ---- Toast 通知 ---- */
#toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    font-size: 13px;
    min-width: 280px;
    pointer-events: all;
    animation: toastIn 0.3s ease;
}

.toast.toast-success { border-color: rgba(0,229,122,0.4); }
.toast.toast-error   { border-color: rgba(255,59,92,0.4); }
.toast.toast-warning { border-color: rgba(255,215,0,0.4); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(40px); }
}

/* ---- 表格 ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table thead tr {
    background: rgba(0, 212, 255, 0.06);
    border-bottom: 1px solid var(--border-bright);
}

.data-table thead th {
    padding: 12px 16px;
    text-align: left;
    color: var(--color-primary);
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(0, 212, 255, 0.04);
}

.data-table tbody td {
    padding: 11px 16px;
    color: var(--text-primary);
    vertical-align: middle;
}

/* ---- 响应式工具 ---- */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }
}