/* Base Reset & Global Settings */
* {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f8f9fa;
    margin: 0;
    padding: 0;
    color: #212529;
    overflow-x: hidden;
}

/* Top Navigation Bar */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: #0d6efd;
    color: white;
    padding: 1rem 2rem;
    z-index: 1000;
    box-shadow: 0 0.25rem 0.75rem rgba(0,0,0,.1);
}

.nav-container {
    max-width: 960px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav h1 {
    margin: 0;
    font-size: 1.5rem;
}

.nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1rem;
}

.nav ul li a {
    color: white;
    font-weight: 600;
    text-decoration: none;
}

.nav ul li a:hover {
    color: #e2e6ea;
}

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 2rem;
    color: #fff;
    margin-left: auto;
}

/* Content Layout */
.container,
.login-container,
.main-content {
    max-width: 960px;
    margin: 100px auto 2rem auto;
    padding: 2rem;
    background: #ffffff;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,.05);
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: #343a40;
}

/* Form Inputs */
input[type="email"],
input[type="password"],
input[type="text"],
input[type="file"],
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
    font-size: 1rem;
    margin-bottom: 1rem;
}

/* Buttons */
button {
    width: 100%;
    padding: 0.75rem;
    background-color: #0d6efd;
    color: #fff;
    border: none;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}

button:hover {
    background-color: #0b5ed7;
}

/* Error Messages */
.error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    border: 1px solid #dee2e6;
    text-align: left;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.pagination a,
.pagination strong {
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 500;
    border: 1px solid #dee2e6;
    color: #0d6efd;
}

.pagination strong {
    background-color: #e9ecef;
    color: #000;
}

.pagination a:hover {
    background-color: #e9ecef;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.875rem;
    color: #6c757d;
}

/* Utility Classes */
.danger-button {
    background-color: #dc3545;
    color: white;
    margin-top: 2rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
}

.danger-button:hover {
    background-color: #b02a37;
}

.button.small {
    padding: 0.3rem 0.75rem;
    font-size: 0.875rem;
}

/* Form Enhancements */
.user-actions div {
    margin-top: 0.5rem;
}

.user-actions button {
    width: auto;
    margin-left: 0.5rem;
}

.user-actions select,
.user-actions input[type="password"] {
    width: auto;
    display: inline-block;
    margin-right: 0.5rem;
}

/* Fix login container overflow on small screens */
@media (max-width: 768px) {
    .container,
    .login-container,
    .main-content {
        width: 100%;
        margin: 90px auto 1rem auto;
        padding: 1.5rem;
        box-sizing: border-box;
    }

    .nav-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu-toggle {
        display: block;
    }

    .nav ul {
        flex-direction: column;
        width: 100%;
        display: none;
        background: #1c1c1e;
        margin-top: 0.5rem;
        padding: 0;
    }

    .nav ul.show {
        display: flex;
    }

    .nav ul li {
        width: 100%;
    }

    .nav ul li a {
        padding: 0.75rem 1rem;
        width: 100%;
        display: block;
    }

    .nav ul li ul {
        position: static;
        box-shadow: none;
        background: #2c2c2e;
    }

    .nav ul li ul li a {
        color: #fff;
    }
}