/* RESET */
body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #0A192F;
    color: #CCD6F6;
}

/* CONTAINER */
.container {
    width: 90%;
    max-width: 1000px;
    margin: auto;
    padding: 20px;
}

/* NAVBAR */
.navbar {
    background: #112240;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h2 {
    color: #64B5F6;
    margin: 0;
}

.navbar a {
    color: #CCD6F6;
    text-decoration: none;
    margin-left: 20px;
    transition: 0.3s;
}

.navbar a:hover {
    color: #1E90FF;
}

/* CARD */
.card {
    background: #112240;
    padding: 25px;
    border-radius: 10px;
    margin-top: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

/* FORM */
input, button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 6px;
    border: none;
    outline: none;
}

/* INPUT */
input {
    background: #0A192F;
    color: #CCD6F6;
    border: 1px solid #1E2A47;
}

/* BUTTON */
button {
    background: #1E90FF;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #187bcd;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: #112240;
}

th, td {
    padding: 12px;
    border-bottom: 1px solid #1E2A47;
    text-align: left;
}

th {
    background: #0A192F;
    color: #64B5F6;
}

tr:hover {
    background: #1A2F50;
}

/* LINKS */
a.btn {
    display: inline-block;
    padding: 10px 15px;
    background: #1E90FF;
    color: white;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 10px;
}

a.btn:hover {
    background: #187bcd;
}

/* ADD FIELD BUTTON */
.add-btn {
    background: #2ECC71;
}

.add-btn:hover {
    background: #27ae60;
}

/* LOGIN CENTER */
.center-box {
    width: 350px;
    margin: 100px auto;
}

/* SIDEBAR */
.sidebar {
    width: 220px;
    height: 100vh;
    background: #112240;
    position: fixed;
    top: 0;
    left: 0;
    padding-top: 20px;
}

.sidebar a {
    display: block;
    padding: 15px;
    color: #CCD6F6;
    text-decoration: none;
    transition: 0.3s;
}

.sidebar a:hover {
    background: #1E90FF;
}

.sidebar i {
    margin-right: 10px;
}

/* CONTENT SHIFT */
.main {
    margin-left: 220px;
    padding: 20px;
}

/* MOBILE */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    .main {
        margin-left: 0;
    }
}

/* MODAL */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
}

.modal-content {
    background: #112240;
    padding: 20px;
    margin: 10% auto;
    width: 400px;
    border-radius: 10px;
}

/* BUTTON COLORS */
.btn-green { background: #2ECC71; }
.btn-red { background: #E74C3C; }