* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #1a2e20;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 20px;
}

.router-interface {
    max-width: 1200px;
    width: 100%;
    background-color: #f4f7f2;
    border-radius: 30px 30px 20px 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    border: 2px solid #5a7c5c;
}

.header {
    background: linear-gradient(145deg, #2b4b2f, #1c331f);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    border-bottom: 3px solid #9bbf7c;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    background-color: #9bbf7c;
    color: #1c331f;
    font-weight: bold;
    font-size: 24px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text h1 {
    font-size: 28px;
    letter-spacing: 2px;
}

.logo-text p {
    font-size: 14px;
    color: #bfe6a8;
}

.tech-badge {
    background-color: #3f5e42;
    padding: 10px 18px;
    border-radius: 40px;
    border: 1px solid #9bbf7c;
    display: flex;
    gap: 15px;
    align-items: center;
}

.logout-btn {
    background: #9bbf7c;
    color: #1c331f;
    border: none;
    padding: 5px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
}

.logout-btn:hover {
    background: #b8db9c;
}

/* Pantalla QR */
.qr-verification-screen {
    background: linear-gradient(135deg, #eef4ea, #ffffff);
    padding: 50px 30px;
    text-align: center;
    border-bottom: 2px dashed #9bbf7c;
}

.qr-placeholder {
    display: inline-block;
    background: white;
    padding: 20px;
    border-radius: 30px;
    box-shadow: 0 10px 20px rgba(0, 40, 0, 0.2);
    margin-bottom: 30px;
}

.qr-fake img {
    width: 200px;
    height: 200px;
    border-radius: 20px;
}

.btn-scan {
    display: inline-block;
    background: #1c331f;
    color: white;
    text-decoration: none;
    padding: 16px 50px;
    font-size: 22px;
    font-weight: bold;
    border-radius: 60px;
    cursor: pointer;
    box-shadow: 0 8px 0 #0a1f0e;
    transition: 0.1s ease;
    border: 2px solid #9bbf7c;
}

.btn-scan:active {
    transform: translateY(8px);
    box-shadow: 0 0 0 #0a1f0e;
}

/* Login */
.login-container {
    padding: 40px;
    background: white;
}

.user-quick-login {
    margin-bottom: 30px;
    text-align: center;
}

.user-quick-login button {
    background: #2b4b2f;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 5px;
    border-radius: 30px;
    cursor: pointer;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #1c331f;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #bdd8b0;
    border-radius: 10px;
    font-size: 16px;
}

.login-message {
    margin-top: 20px;
    padding: 10px;
    text-align: center;
    font-weight: bold;
}

/* Dashboard */
.main-content {
    padding: 30px;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #bdd8b0;
    padding-bottom: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 12px 25px;
    font-size: 16px;
    font-weight: 600;
    color: #2f4d32;
    border-radius: 40px 40px 0 0;
    cursor: pointer;
    border: 2px solid transparent;
}

.tab-btn.active {
    background: #ffffff;
    color: #1c331f;
    border: 2px solid #7fa07e;
    border-bottom-color: white;
}

.tab-panel {
    display: none;
    background: white;
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0, 30, 0, 0.1);
}

.tab-panel.active-panel {
    display: block;
}

.stats {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: #dff0d6;
    padding: 15px 25px;
    border-radius: 15px;
    font-size: 18px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: #2b4b2f;
    color: white;
    padding: 12px;
    text-align: left;
}

td {
    padding: 12px;
    border-bottom: 1px solid #d0e0c7;
    color: #1d2f1a;
}

tr:hover {
    background: #f0f8ec;
}

.badge {
    background: #9bbf7c;
    color: #1c331f;
    padding: 4px 12px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 13px;
}

.status-online {
    color: green;
    font-weight: bold;
}

.status-offline {
    color: #999;
}

.btn-role {
    background: #1c331f;
    color: white;
    border: none;
    padding: 5px 12px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 12px;
    margin: 2px;
}

.btn-role:hover {
    background: #2f5835;
}

.log-container {
    max-height: 400px;
    overflow-y: auto;
    background: #1e2a1e;
    color: #b3ffb3;
    padding: 15px;
    border-radius: 15px;
    font-family: monospace;
}

.log-entry {
    padding: 8px;
    border-bottom: 1px solid #3a4a3a;
}

.log-entry .timestamp {
    color: #9bbf7c;
    margin-right: 15px;
}

.device-footer {
    background: #1c331f;
    color: #b3d9a5;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    border-top: 2px solid #9bbf7c;
}

.qr-small {
    background: white;
    color: #1c331f;
    padding: 5px 10px;
    border-radius: 20px;
    font-weight: bold;
}