:root {
    --primary: #1e88e5;
    --primary-dark: #1565c0;
    --bg-dark: #f4f7f6; /* Fondo de la página claro */
    --bg-panel: #1e1e1e; /* Tarjetas oscuras */
    --text-main: #222222; /* Textos fuera de cajas oscuros */
    --text-muted: #b0b0b0;
    --border: #333333;
    --danger: #e53935;
    
    --sidebar-bg: #1a1a1a;
    --sidebar-border: #333333;
    --sidebar-text: #ffffff;
    --sidebar-muted: #b0b0b0;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

body.login-body {
    align-items: center;
    justify-content: center;
}

.login-container {
    background: var(--bg-panel);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    text-align: center;
    width: 350px;
}

.login-container h2 {
    margin-bottom: 10px;
    color: var(--primary);
}

.login-container p {
    color: var(--sidebar-muted);
    margin-bottom: 30px;
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--sidebar-border);
    background: #111111;
    color: white;
    border-radius: 6px;
    outline: none;
}

.login-container button {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.login-container button:hover {
    background: var(--primary-dark);
}

.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 20px 0;
    border-right: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
}

.sidebar h2 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary);
    font-size: 20px;
    letter-spacing: 1px;
}

.sidebar a {
    color: var(--sidebar-muted);
    text-decoration: none;
    padding: 15px 25px;
    display: block;
    transition: 0.2s;
}

.sidebar a:hover, .sidebar a.active {
    background: rgba(30, 136, 229, 0.1);
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.sidebar a.logout {
    margin-top: auto;
    color: var(--danger);
}

.main-content {
    flex: 1;
    padding: 40px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-panel);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

th, td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    color: #ffffff;
}

th {
    background: rgba(255,255,255,0.02);
    color: var(--text-muted);
    font-weight: 500;
}

td a {
    color: var(--primary);
    text-decoration: none;
}

.btn-edit {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

.btn-delete {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
}

.modal-content {
    background-color: var(--bg-panel);
    margin: 5% auto;
    padding: 30px;
    border-radius: 12px;
    width: 500px;
    border: 1px solid var(--border);
}

.close {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: white;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 10px;
    background: #121212;
    border: 1px solid var(--border);
    color: #ffffff;
    border-radius: 6px;
}