body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #0d1117;
    color: #e6edf3;
    display: flex;
}

/* SIDEBAR */
.sidebar {
    width: 220px;
    height: 100vh;
    background: #161b22;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar h2 {
    color: #00e0e0;
    margin-bottom: 30px;
}

.sidebar a {
    display: block;
    color: #c9d1d9;
    text-decoration: none;
    margin: 15px 0;
    padding: 10px;
    border-radius: 8px;
}

.sidebar a:hover {
    background: #00e0e0;
    color: #000;
}

/* MAIN */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* HEADER */
.header {
    background: #161b22;
    padding: 15px 20px;
    border-bottom: 1px solid #30363d;
    font-weight: bold;
}

/* CONTENT */
.content {
    padding: 20px;
}

/* CARDS */
.card {
    background: #161b22;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

/* INPUTS */
input, select {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    background: #0d1117;
    border: 1px solid #30363d;
    color: #fff;
    border-radius: 8px;
}

/* BUTTON */
button {
    background: linear-gradient(45deg, #00e0e0, #00a3a3);
    border: none;
    padding: 12px;
    margin-top: 10px;
    border-radius: 8px;
    cursor: pointer;
    color: #000;
    font-weight: bold;
}

button:hover {
    opacity: 0.85;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px;
    border-bottom: 1px solid #30363d;
}