:root {
    --navy: #001f3f;
    --navy-light: #003366;
    --accent: #3a86ff;
    --bg-color: #f4f6f9;
    --card-bg: #ffffff;
    --text-color: #333333;
    --border-color: #dcdcdc;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    padding-top: 70px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: var(--navy);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    z-index: 1000;
}

.nav-brand {
    font-size: 1.2rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    padding: 5px 10px;
}

.nav-link:hover {
    color: var(--accent);
}

.install-btn {
    background-color: var(--accent);
    border-radius: 4px;
    font-weight: bold;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger span {
    width: 100%;
    height: 3px;
    background-color: white;
    border-radius: 2px;
}

/* Main Container & Card */
.main-container {
    max-width: 900px;
    margin: 20px auto;
    padding: 0 15px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 25px;
    border-top: 5px solid var(--navy);
}

.card h2 {
    margin-bottom: 10px;
    color: var(--navy);
}

.card-desc {
    margin-bottom: 20px;
    color: #666;
}

/* Actions Bar */
.actions-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    color: var(--text-color);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.95rem;
    text-align: center;
    display: inline-block;
}

.btn:hover {
    background-color: #eaeaea;
}

.btn-primary {
    background-color: var(--navy);
    color: white;
    border-color: var(--navy);
}

.btn-primary:hover {
    background-color: var(--navy-light);
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
    border-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 3px;
    cursor: pointer;
}

.btn-danger:hover {
    background-color: #bd2130;
}

/* Table */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: left;
}

th {
    background-color: var(--navy);
    color: white;
}

td input[type="text"] {
    width: 100%;
    padding: 6px;
    border: 1px solid transparent;
    background: transparent;
    font-size: 0.95rem;
}

td input[type="text"]:focus {
    border-color: var(--accent);
    background: #fff;
    outline: none;
    border-radius: 3px;
}

/* Responsive Navbar */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: var(--navy);
        padding: 15px 0;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 10px;
    }
}