:root {
    --bg-color: #0A0E17;
    --panel-bg: #121826;
    --border-color: #1F293D;
    --text-main: #EAECEF;
    --text-muted: #8A94A5;
    --green: #00FFA3;
    --red: #FF4D4D;
    --blue: #3399FF;
    --warn: #FFB648;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden; /* 防止全屏滚动 */
}

/* 登录遮罩 */
.overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.auth-box {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 12px;
    width: 380px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.auth-logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 10px;
}
.auth-logo span { color: var(--green); }
.auth-box p { color: var(--text-muted); font-size: 14px; margin-bottom: 25px; }

.auth-box input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    background: #0A0E17;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border 0.2s;
}
.auth-box input:focus { border-color: var(--blue); }

.auth-box button {
    width: 100%;
    padding: 12px;
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.auth-box button:hover { background: #267ADD; }
.error-msg { color: var(--red); font-size: 12px; margin-top: 10px; min-height: 15px; }

/* 布局 */
.layout {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 240px;
    background: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.brand {
    padding: 20px;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}
.brand span { color: var(--green); }

.sidebar nav { flex: 1; padding: 20px 0; }
.sidebar nav a {
    display: block;
    padding: 12px 20px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}
.sidebar nav a:hover, .sidebar nav a.active {
    color: var(--text-main);
    background: rgba(255,255,255,0.03);
    border-left: 3px solid var(--green);
}

.status-indicator {
    padding: 15px 20px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); }
.dot.active { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot.error { background: var(--red); box-shadow: 0 0 8px var(--red); }

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    overflow-y: auto;
}

/* 顶栏 */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--panel-bg);
    padding: 15px 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}
.running-strategy {
    display: flex;
    align-items: center;
    gap: 12px;
}
.running-strategy .label { color: var(--text-muted); font-size: 13px; }
.running-strategy strong { font-size: 18px; letter-spacing: 0.5px; }
.badge {
    padding: 3px 8px;
    background: rgba(51, 153, 255, 0.15);
    color: var(--blue);
    border: 1px solid rgba(51, 153, 255, 0.3);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.bot-state {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--green);
    font-weight: 600;
}
.bot-state.paused { color: var(--warn); }
.pulse {
    width: 6px; height: 6px; border-radius: 50%; background: var(--green);
    box-shadow: 0 0 0 0 rgba(0, 255, 163, 0.7);
    animation: pulse 1.5s infinite;
}
.bot-state.paused .pulse { background: var(--warn); animation: none; box-shadow: none; }

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 163, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(0, 255, 163, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 163, 0); }
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
    color: white;
}
.btn:hover { opacity: 0.8; }
.btn-warning { background: var(--warn); color: #000; }
.btn-success { background: var(--green); color: #000; }

/* 核心指标 */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.metric-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 8px;
}
.m-label { color: var(--text-muted); font-size: 13px; margin-bottom: 8px; }
.m-value { font-size: 24px; font-weight: 800; font-family: monospace; }
.text-green { color: var(--green); }
.text-red { color: var(--red); }

/* 主图表和流水区 */
.main-split {
    display: flex;
    flex: 1;
    gap: 20px;
    min-height: 400px;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
}
.panel-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
}

.chart-container { flex: 2.5; }
#tvchart { flex: 1; width: 100%; position: relative; }

.trades-container { flex: 1; overflow: hidden; }
.table-wrapper { flex: 1; overflow-y: auto; }

table { width: 100%; border-collapse: collapse; text-align: left; }
th {
    position: sticky; top: 0; background: var(--panel-bg);
    padding: 10px 15px; font-size: 12px; color: var(--text-muted); font-weight: normal;
    border-bottom: 1px solid var(--border-color);
}
td {
    padding: 12px 15px; font-size: 13px; font-family: monospace;
    border-bottom: 1px solid rgba(255,255,255,0.02);
}
tr:hover { background: rgba(255,255,255,0.02); }

.side-buy { color: var(--green); font-weight: bold; }
.side-sell { color: var(--red); font-weight: bold; }