:root {
    --bg: #0b1020;
    --card: #111830;
    --text: #eaeef8;
    --accent: #ffd84d;
    --muted: #9aa3b2;
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica Neue, Arial;
    background: var(--bg);
    color: var(--text)
}

a {
    color: var(--accent);
    text-decoration: none
}

header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 16, 32, .85);
    backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid #1d294a
}

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

#side-nav {
    width: 260px;
    z-index: 10;
    background: #0f1630;
    border-right: 1px solid #1d294a;
    padding: 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: auto;
    transition: transform .25s ease
}

#side-nav h3 {
    margin-top: 8px;
    font-size: 14px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .12em
}

#side-nav ul {
    list-style: none;
    padding: 0;
    margin: 12px 0
}

#side-nav li {
    margin: 6px 0
}

#side-nav a {
    display: block;
    padding: 8px 10px;
    border-radius: 10px
}

#side-nav a:hover {
    background: #142044
}

#burger {
    display: none;
    padding: 12px 16px;
    cursor: pointer
}

@media (max-width:900px) {
    #side-nav {
        position: fixed;
        left: 0;
        top: 56px;
        height: calc(100vh - 56px);
        transform: translateX(-100%)
    }

    #side-nav.open {
        transform: translateX(0)
    }

    #burger {
        display: block
    }

    .content {
        margin-left: 0 !important
    }
}

.content {
    flex: 1;
    padding: 24px;
    
}

.card {
    background: var(--card);
    border: 1px solid #1d294a;
    border-radius: 2px;
    padding: 15px;
    z-index: 200;
    position: absolute;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
    
}

.muted {
    color: var(--muted)
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 12px;
    background: #15224a;
    border: 1px solid #243469;
    color: var(--text);
    font-weight: 600
}

.btn:hover {
    filter: brightness(1.08)
}

.grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(12, 1fr)
}

.col-6 {
    grid-column: span 6
}

.col-12 {
    grid-column: span 12
}

@media (max-width:900px) {
    .col-6 {
        grid-column: span 12
    }
}

.flying-notes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0
}

.note {
    position: absolute;
    width: 22px;
    height: 22px;
    background: var(--accent);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .25);
    transform: rotate(8deg);
    opacity: .8;
    border-radius: 2px;
    animation: float 18s linear infinite
}

.note:nth-child(odd) {
    transform: rotate(-6deg)
}


@keyframes float {
    from {
        transform: translateY(100vh) scale(1) rotate(8deg)
    }

    to {
        transform: translateY(-20vh) scale(1.2) rotate(18deg)
    }
}
    

.cloud {
    filter: blur(2px) brightness(1.1);
    opacity: .6
}

.table {
    width: 100%;
    border-collapse: collapse
}

.table th,
.table td {
    padding: 10px 12px;
    border-bottom: 1px solid #23325f;
    text-align: left
}

.table th {
    color: var(--muted);
    font-weight: 600
}

.footer {
    color: var(--muted);
    font-size: 14px;
    margin-top: 24px
}