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

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
        sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    height: 100vh;
    overflow: hidden;
}

/* Navbar */
nav {
    background: #1e293b;
    border-bottom: 2px solid #334155;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    height: 60px;
    gap: 0.5rem;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-right: auto;
}

nav a {
    color: #94a3b8;
    text-decoration: none;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
    font-weight: 500;
}

nav a:hover {
    background: #334155;
    color: #e2e8f0;
}

nav a.active {
    background: #3b82f6;
    color: white;
}

/* Main Content */
#main-content {
    height: calc(100vh - 64px);
    overflow: hidden;
    position: relative;
}

.content-section {
    display: none;
    height: 100%;
    overflow: auto;
}

.content-section.active {
    display: block;
}

/* Panel Styles */
.panel {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 0.5rem;
}

/* Buttons */
button {
    font-family: inherit;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Utility */
h1,
h2,
h3 {
    margin-bottom: 1rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.text-gray {
    color: #94a3b8;
}
