:root {
    --bg-color: #05070a;
    --sidebar-bg: rgba(11, 19, 36, 0.95);
    --accent-color: #00f2ff;
    --glass-bg: rgba(11, 19, 36, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-color: #e0e6ed;
    --muted-text: #92a3ba;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background: radial-gradient(circle at center, #1a2c42 0%, #000000 100%);
}

aside {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.logo span {
    color: var(--accent-color);
    text-shadow: 0 0 12px rgba(0, 242, 255, 0.45);
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nav-links a {
    color: #aeb9cc;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

main {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.eyebrow {
    color: var(--accent-color);
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.4rem;
}

header p {
    color: var(--muted-text);
    max-width: 640px;
    line-height: 1.6;
}

.user-profile {
    padding: 0.9rem 1.2rem;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    border-radius: 12px;
    white-space: nowrap;
}

.card,
.panel,
.table-container {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

.card h3,
.panel h3,
.table-container h3 {
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.metric {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

@media (max-width: 1100px) {
    body {
        flex-direction: column;
    }

    aside {
        width: 100%;
        border-right: 0;
        border-bottom: 1px solid var(--glass-border);
    }
}

@media (max-width: 700px) {
    main,
    aside {
        padding: 1.25rem;
    }

    header {
        flex-direction: column;
    }
}