@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --primary: #00C48C;
    --primary-dark: #009E70;
    --primary-light: #E6FAF4;
    --sidebar-bg: #0b1a1f;
    --sidebar-icon: #7d939e;
    --sidebar-icon-active: #00C48C;
    --bg-page: #f4f7f9;
    --card-bg: #ffffff;
    --border-color: #e5eaee;
    --text-main: #141e24;
    --text-muted: #748590;
    --success: #00C48C;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    overflow-x: hidden;
}

.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 64px;
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 0;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
}

.sidebar-logo {
    margin-bottom: 24px;
}

.hivemq-hexagon-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #00C48C 0%, #007A58 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(0, 196, 140, 0.3);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sidebar-icon);
    font-size: 17px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.nav-item:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.08);
}

.nav-item.active {
    color: var(--sidebar-icon-active);
    background-color: rgba(0, 196, 140, 0.15);
}

/* Main Content */
.main-content {
    margin-left: 64px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Nav */
.top-nav {
    height: 60px;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.top-nav-left {
    display: flex;
    align-items: center;
    gap: 28px;
}

.page-heading {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-main);
}

.tab-links {
    display: flex;
    gap: 16px;
}

.tab-link {
    background: none;
    border: none;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 0;
    position: relative;
}

.tab-link.active {
    color: var(--primary-dark);
}

.tab-link.active::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.top-nav-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f1f5f8;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 12px;
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    font-size: 12px;
    color: var(--text-main);
    width: 120px;
}

.kbd-shortcut {
    font-size: 10px;
    background: #ffffff;
    border: 1px solid #d4dde3;
    padding: 2px 5px;
    border-radius: 4px;
    color: #64748b;
}

.btn-upgrade {
    background: #0f172a;
    color: #ffffff;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-left: 12px;
    border-left: 1px solid var(--border-color);
}

.user-badge img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
}

.user-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-main);
}

/* Dashboard Body */
.dashboard-body {
    padding: 20px 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* Top 4 KPI Cards */
.kpi-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 16px;
}

.kpi-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 16px 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.rate-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.rate-val {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-main);
}

.rate-unit {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
}

.sparkline-bar-wrap {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 32px;
    width: 100%;
    margin-top: 8px;
    padding: 2px 0;
}

.spark-bar {
    flex: 1;
    min-width: 4px;
    background: #3b82f6;
    border-radius: 3px;
    transition: height 0.3s ease, background-color 0.3s ease;
}

.spark-bar.out {
    background: #6366f1;
}

.spark-bar:hover {
    filter: brightness(1.15);
}

.stat-sub-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-main);
    margin-top: 4px;
}

.text-success { color: #00C48C !important; }
.text-primary { color: #3b82f6 !important; }
.text-warning { color: #f59e0b !important; }
.text-muted { color: #94a3b8 !important; }

/* Node Info Card */
.node-info-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.node-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: #009E70;
    background: var(--primary-light);
    padding: 4px 10px;
    border-radius: 12px;
    margin-bottom: 16px;
}

.dot-live {
    width: 7px;
    height: 7px;
    background: #00C48C;
    border-radius: 50%;
}

.node-details-grid {
    display: grid;
    grid-template-columns: 180px 1fr 1fr;
    gap: 24px;
    align-items: center;
}

.node-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hexagon-cube {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, #00C48C 0%, #008F68 100%);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 38px;
    box-shadow: 0 8px 24px rgba(0, 196, 140, 0.35);
}

.node-field-title {
    font-size: 14px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
}

.node-field-row {
    display: flex;
    font-size: 12px;
    margin-bottom: 8px;
}

.node-field-row.align-center {
    align-items: center;
}

.field-label {
    width: 140px;
    color: var(--text-muted);
    font-weight: 600;
}

.field-val {
    color: var(--text-main);
    font-weight: 700;
}

.field-val.highlight {
    color: #0284c7;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

.memory-progress-track {
    flex: 1;
    max-width: 160px;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.memory-progress-fill {
    height: 100%;
    background: #00C48C;
    border-radius: 4px;
    transition: width 0.4s;
}

/* Charts Header */
.charts-header {
    display: flex;
    justify-content: flex-end;
}

.time-selector select {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
    outline: none;
    cursor: pointer;
}

/* 6 Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.chart-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 16px 18px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.chart-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-main);
}

.canvas-wrap {
    height: 140px;
    position: relative;
}