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

body {
    font-family: 'Inter', sans-serif;
    background-color: #0b0f19;
    color: #f3f4f6;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

header {
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background-color: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.5px;
}

.logo span {
    color: #f59e0b;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover, nav a.active {
    color: #ffffff;
}

.pulse-indicator {
    font-size: 12px;
    color: #10b981;
    font-weight: 600;
    background-color: rgba(16, 185, 129, 0.1);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.dashboard-container {
    margin-top: 120px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    min-height: calc(100vh - 120px);
}

.sidebar {
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    padding-right: 20px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

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

.group-title {
    font-size: 11px;
    font-weight: 600;
    color: #4b5563;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.sidebar-link {
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 14px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.sidebar-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.02);
}

.sidebar-link.active {
    color: #f59e0b;
    background-color: rgba(245, 158, 11, 0.08);
    font-weight: 600;
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding-bottom: 60px;
}

.content-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}

.content-header p {
    font-size: 14px;
    color: #9ca3af;
}

.drop-zone-container {
    width: 100%;
    padding: 40px;
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.01);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.drop-zone-container.dragover {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.02);
}

.drop-zone-icon {
    font-size: 40px;
}

.drop-zone-text h3 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 4px;
}

.drop-zone-text p {
    font-size: 13px;
    color: #6b7280;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.metric-card {
    background-color: #111827;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    border-radius: 8px;
}

.metric-label {
    font-size: 11px;
    font-weight: 600;
    color: #9ca3af;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
}

.metric-value span {
    font-size: 14px;
    font-weight: 500;
}

.progress-bar-bg {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    margin-bottom: 14px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 3px;
}

.fill-high { background-color: #ef4444; }
.fill-secure { background-color: #10b981; }
.fill-warning { background-color: #f59e0b; }

.metric-status {
    font-size: 12px;
    font-weight: 500;
}

.threat-high .metric-status { color: #ef4444; }
.threat-secure .metric-status { color: #10b981; }
.threat-monitoring .metric-status { color: #f59e0b; }

.alert-box {
    background: rgba(239, 68, 68, 0.03);
    border: 1px solid rgba(239, 68, 68, 0.15);
    padding: 20px;
    border-radius: 8px;
    color: #fca5a5;
    font-size: 14px;
    line-height: 1.6;
}