* {
    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;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: white;
    border-radius: 20px;
    padding: 50px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.login-header .logo {
    font-size: 4em;
    margin-bottom: 10px;
}

.login-header h1 {
    color: #2c3e50;
    font-size: 1.8em;
    margin-bottom: 5px;
}

.login-header p {
    color: #7f8c8d;
    font-size: 1em;
}

.login-body {
    margin-top: 30px;
}

.login-body h2 {
    color: #2c3e50;
    margin-bottom: 5px;
}

.login-body .subtitle {
    color: #7f8c8d;
    margin-bottom: 30px;
}

.microsoft-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 14px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: white;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    color: #333;
    transition: all 0.3s ease;
}

.microsoft-login-btn:hover {
    border-color: #0078d4;
    background: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.2);
}

.microsoft-login-btn:active {
    transform: translateY(0);
}

.microsoft-login-btn.loading {
    opacity: 0.7;
    cursor: wait;
}

.microsoft-icon {
    width: 20px;
    height: 20px;
}

.login-info {
    margin-top: 25px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.login-info p {
    color: #666;
    font-size: 0.9em;
}