:root {
    --primary-color: #0056b3;
    --primary-hover: #004494;
    --bg-color: #f4f6f8;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #666666;
    --border-color: #dddddd;
    --error-color: #d9534f;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Login Page Styles */
.login-container {
    background-color: var(--card-bg);
    width: 100%;
    max-width: 400px;
    margin: auto;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-align: center;
}

.login-header {
    margin-bottom: 2rem;
}

.logo {
    max-width: 80px;
    margin-bottom: 1rem;
    object-fit: contain;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input[type="email"]:focus,
input[type="password"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

.mfa-notice {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.login-footer {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.alert {
    padding: 0.75rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Dashboard Styles */
.navbar {
    background-color: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    color: var(--error-color);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid var(--error-color);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-logout:hover {
    background-color: var(--error-color);
    color: white;
}

.dashboard-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    width: 100%;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.status-indicator {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.online {
    background-color: #d4edda;
    color: #155724;
}

.activity-list {
    list-style: none;
}

.activity-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

.flag-box {
    background-color: #2d2d2d;
    color: #00ff00;
    padding: 1rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    margin-top: 1rem;
    word-break: break-all;
}

/* Responsive Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}