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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container,
.dashboard-container {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    width: 90%;
    max-width: 400px;
}

.login-container h2,
.dashboard-container h1 {
    color: #333;
    margin-bottom: 1.5rem;
    text-align: center;
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.login-container input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-container button,
.dashboard-container a {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-container button:hover,
.dashboard-container a:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-logout {
    background: #ff6b6b;
}

.btn-logout:hover {
    background: #ff5252;
}